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/cstrncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:38:41,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:38:41,635 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:38:41,690 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 15:38:41,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 15:38:41,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 15:38:41,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 15:38:41,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 15:38:41,715 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 15:38:41,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 15:38:41,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 15:38:41,717 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 15:38:41,718 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 15:38:41,719 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 15:38:41,720 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 15:38:41,723 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 15:38:41,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 15:38:41,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 15:38:41,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 15:38:41,730 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 15:38:41,732 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 15:38:41,733 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 15:38:41,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 15:38:41,734 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 15:38:41,735 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 15:38:41,737 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 15:38:41,737 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 15:38:41,738 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 15:38:41,739 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 15:38:41,739 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 15:38:41,740 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 15:38:41,741 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:38:41,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:38:41,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:38:41,771 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:38:41,773 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:38:41,774 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:38:41,774 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:38:41,774 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:38:41,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:38:41,775 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:38:41,777 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:38:41,778 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:38:41,778 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:38:41,778 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:38:41,778 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:38:41,779 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:38:41,779 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:38:41,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:38:41,779 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:38:41,779 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:38:41,780 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:38:41,780 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:38:41,780 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:38:41,780 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:38:41,781 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:38:41,781 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:38:41,781 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:38:41,781 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:38:41,781 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:38:41,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:38:41,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:38:41,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:38:41,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:41,792 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:38:41,793 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:38:41,793 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:38:41,793 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:38:41,793 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:38:41,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:38:41,925 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:38:41,940 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:38:41,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:38:41,947 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:38:41,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:42,586 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa58d69451 [2018-04-05 15:38:43,167 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:38:43,184 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:38:43,187 INFO L168 CDTParser]: Scanning cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,267 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:38:43,278 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:38:43,278 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:38:43,278 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,279 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,279 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,279 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,279 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:38:43,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_short in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__size_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____time_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,300 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,300 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,300 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,300 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,301 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,304 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,304 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____id_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,305 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,306 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_int in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__id_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,307 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__time_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,308 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__register_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,310 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,310 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,310 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,310 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ushort in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,311 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,312 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uint in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,313 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,314 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,323 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ulong in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,324 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_short in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,325 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__div_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,326 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,327 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:43,375 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa58d69451 [2018-04-05 15:38:43,391 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:38:43,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:38:43,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:38:43,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:38:43,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:38:43,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:38:43" (1/1) ... [2018-04-05 15:38:43,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f36e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:43, skipping insertion in model container [2018-04-05 15:38:43,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:38:43" (1/1) ... [2018-04-05 15:38:43,450 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:38:43,540 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:38:44,047 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:38:44,191 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:38:44,217 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 15:38:44,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44 WrapperNode [2018-04-05 15:38:44,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:38:44,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:38:44,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:38:44,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:38:44,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... [2018-04-05 15:38:44,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:38:44,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:38:44,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:38:44,537 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:38:44,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:38:45,016 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:38:45,017 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:38:45,017 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:38:45,017 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:38:45,017 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-04-05 15:38:45,017 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:38:45,017 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:38:45,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:38:45,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:38:45,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:38:45,045 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:38:45,045 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:38:45,045 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:38:45,046 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:38:45,047 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:38:45,048 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:38:45,049 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:38:45,054 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:38:45,054 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:38:45,054 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:38:45,054 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:38:45,054 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:38:45,055 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:38:45,056 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:38:45,057 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:38:45,057 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:38:45,057 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:38:45,057 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:38:45,057 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:38:45,067 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:38:45,067 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:38:45,067 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:38:45,067 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:38:45,067 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:38:45,068 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:38:45,069 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:38:45,070 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:38:45,071 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:38:45,073 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:38:45,074 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:38:45,080 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:38:45,080 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:38:45,080 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:38:45,080 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:38:45,080 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:38:45,081 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:38:45,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:38:45,082 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:38:46,403 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:38:46,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:38:46 BoogieIcfgContainer [2018-04-05 15:38:46,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:38:46,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:38:46,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:38:46,417 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:38:46,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:38:43" (1/3) ... [2018-04-05 15:38:46,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7526b706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:38:46, skipping insertion in model container [2018-04-05 15:38:46,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:38:44" (2/3) ... [2018-04-05 15:38:46,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7526b706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:38:46, skipping insertion in model container [2018-04-05 15:38:46,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:38:46" (3/3) ... [2018-04-05 15:38:46,427 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:38:46,450 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:38:46,463 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-05 15:38:46,529 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:38:46,530 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:38:46,530 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:38:46,530 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:38:46,530 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:38:46,530 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:38:46,531 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:38:46,531 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:38:46,531 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:38:46,536 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:38:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-04-05 15:38:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 15:38:46,606 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:46,607 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:38:46,607 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:46,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1897600849, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:46,647 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:46,726 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:46,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:38:46,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:46,858 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:46,858 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:38:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:46,969 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:47,087 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:47,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:38:47,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 15:38:47,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 15:38:47,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 15:38:47,107 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2018-04-05 15:38:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:38:47,579 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2018-04-05 15:38:47,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 15:38:47,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 15:38:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:38:47,593 INFO L225 Difference]: With dead ends: 95 [2018-04-05 15:38:47,594 INFO L226 Difference]: Without dead ends: 77 [2018-04-05 15:38:47,603 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 15:38:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-05 15:38:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-05 15:38:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-05 15:38:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2018-04-05 15:38:47,655 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 19 [2018-04-05 15:38:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:38:47,656 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2018-04-05 15:38:47,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 15:38:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2018-04-05 15:38:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 15:38:47,657 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:47,657 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:38:47,657 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1897600848, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:47,674 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:47,709 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:47,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:38:47,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:47,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:47,774 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 15:38:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:47,974 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:48,274 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:48,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 15:38:48,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:38:48,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:38:48,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:38:48,277 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand 7 states. [2018-04-05 15:38:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:38:48,755 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2018-04-05 15:38:48,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:38:48,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-05 15:38:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:38:48,759 INFO L225 Difference]: With dead ends: 77 [2018-04-05 15:38:48,759 INFO L226 Difference]: Without dead ends: 76 [2018-04-05 15:38:48,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:38:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-05 15:38:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-05 15:38:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-05 15:38:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-04-05 15:38:48,787 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 19 [2018-04-05 15:38:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:38:48,787 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-04-05 15:38:48,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:38:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-04-05 15:38:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-05 15:38:48,789 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:48,801 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] [2018-04-05 15:38:48,801 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1105859402, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:48,849 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:48,942 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:49,359 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:49,511 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:49,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 15:38:49,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:38:49,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:38:49,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:38:49,512 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 7 states. [2018-04-05 15:38:50,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:38:50,229 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2018-04-05 15:38:50,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:38:50,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2018-04-05 15:38:50,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:38:50,231 INFO L225 Difference]: With dead ends: 76 [2018-04-05 15:38:50,231 INFO L226 Difference]: Without dead ends: 75 [2018-04-05 15:38:50,232 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:38:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-05 15:38:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-05 15:38:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-05 15:38:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2018-04-05 15:38:50,242 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 37 [2018-04-05 15:38:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:38:50,243 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2018-04-05 15:38:50,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:38:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2018-04-05 15:38:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-05 15:38:50,244 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:50,244 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] [2018-04-05 15:38:50,244 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1105859403, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:50,265 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:50,328 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:50,985 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:51,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 15:38:51,053 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:51,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:38:51,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:51,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:38:51,131 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 15:38:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:51,308 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:51,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 15:38:51,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 15:38:51,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 15:38:51,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:38:51,310 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 10 states. [2018-04-05 15:38:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:38:52,903 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2018-04-05 15:38:52,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 15:38:52,904 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2018-04-05 15:38:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:38:52,909 INFO L225 Difference]: With dead ends: 89 [2018-04-05 15:38:52,909 INFO L226 Difference]: Without dead ends: 88 [2018-04-05 15:38:52,909 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:38:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-05 15:38:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2018-04-05 15:38:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 15:38:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-05 15:38:52,947 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 37 [2018-04-05 15:38:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:38:52,948 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-05 15:38:52,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 15:38:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-05 15:38:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 15:38:52,950 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:52,951 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] [2018-04-05 15:38:52,951 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash -78096902, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:52,998 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:53,147 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:53,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:38:53,180 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:53,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:53,217 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:38:53,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:38:53,319 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:53,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:53,345 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:38:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:53,673 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:53,982 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:53,982 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2018-04-05 15:38:53,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:38:53,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:38:53,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-05 15:38:53,983 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 12 states. [2018-04-05 15:38:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:38:55,379 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-04-05 15:38:55,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:38:55,381 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2018-04-05 15:38:55,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:38:55,383 INFO L225 Difference]: With dead ends: 85 [2018-04-05 15:38:55,383 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:38:55,384 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:38:55,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:38:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-05 15:38:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-05 15:38:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2018-04-05 15:38:55,402 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 38 [2018-04-05 15:38:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:38:55,402 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2018-04-05 15:38:55,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:38:55,403 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2018-04-05 15:38:55,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 15:38:55,404 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:38:55,404 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] [2018-04-05 15:38:55,404 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:38:55,404 INFO L82 PathProgramCache]: Analyzing trace with hash -78096901, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:38:55,442 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:38:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:38:55,473 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:38:55,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:38:55,511 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:55,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:38:55,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:55,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:55,601 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 15:38:55,798 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 15:38:55,890 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:38:55,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:38:55,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:55,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:38:55,995 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:38:55,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:38:55,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:56,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:56,044 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:38:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:56,516 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:38:56,718 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 10 [2018-04-05 15:38:57,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 15:38:57,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:57,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 15:38:58,069 WARN L148 SmtUtils]: Spent 210ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:38:58,082 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 15:38:58,083 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:58,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 15:38:58,098 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:38:58,174 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:58,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:38:58,269 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-04-05 15:38:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:38:58,369 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:38:58,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-04-05 15:38:58,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:38:58,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:38:58,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:38:58,371 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 18 states. [2018-04-05 15:39:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:00,752 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2018-04-05 15:39:00,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 15:39:00,753 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2018-04-05 15:39:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:00,755 INFO L225 Difference]: With dead ends: 92 [2018-04-05 15:39:00,755 INFO L226 Difference]: Without dead ends: 91 [2018-04-05 15:39:00,756 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:39:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-04-05 15:39:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-04-05 15:39:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 15:39:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-05 15:39:00,801 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 38 [2018-04-05 15:39:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:00,807 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-05 15:39:00,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:39:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-05 15:39:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 15:39:00,808 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:00,808 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:00,808 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash -712713128, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:00,835 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:00,929 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:01,248 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:01,548 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:01,548 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-04-05 15:39:01,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:39:01,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:39:01,549 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:39:01,549 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 6 states. [2018-04-05 15:39:01,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:01,695 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2018-04-05 15:39:01,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:39:01,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-04-05 15:39:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:01,697 INFO L225 Difference]: With dead ends: 96 [2018-04-05 15:39:01,697 INFO L226 Difference]: Without dead ends: 85 [2018-04-05 15:39:01,698 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:39:01,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-05 15:39:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-05 15:39:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 15:39:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-05 15:39:01,723 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 39 [2018-04-05 15:39:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:01,723 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-05 15:39:01,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:39:01,724 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-05 15:39:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 15:39:01,730 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:01,730 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:01,730 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:01,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1036144935, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:01,765 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:01,885 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:02,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:39:02,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:39:02,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:02,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:02,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:39:02,190 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 15:39:03,031 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:39:03,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-05 15:39:03,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 15:39:03,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:39:03,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:39:03,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:39:03,205 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 15:39:03,404 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 15:39:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:03,694 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:04,488 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 18 DAG size of output 14 [2018-04-05 15:39:05,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:39:05,283 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:05,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:39:05,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 15:39:05,402 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:05,408 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:05,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:05,446 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 15:39:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:05,552 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:39:05,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-05 15:39:05,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 15:39:05,553 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 15:39:05,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-05 15:39:05,554 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 21 states. [2018-04-05 15:39:06,734 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 59 DAG size of output 56 [2018-04-05 15:39:07,528 WARN L151 SmtUtils]: Spent 446ms on a formula simplification. DAG size of input: 58 DAG size of output 55 [2018-04-05 15:39:08,305 WARN L151 SmtUtils]: Spent 526ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 15:39:09,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:09,782 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2018-04-05 15:39:09,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-05 15:39:09,782 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 52 [2018-04-05 15:39:09,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:09,784 INFO L225 Difference]: With dead ends: 113 [2018-04-05 15:39:09,784 INFO L226 Difference]: Without dead ends: 112 [2018-04-05 15:39:09,787 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2018-04-05 15:39:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-05 15:39:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 99. [2018-04-05 15:39:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-04-05 15:39:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-04-05 15:39:09,819 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 52 [2018-04-05 15:39:09,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:09,820 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-04-05 15:39:09,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 15:39:09,820 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-04-05 15:39:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 15:39:09,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:09,821 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] [2018-04-05 15:39:09,822 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:09,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2049691577, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:09,847 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:09,957 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:10,227 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:10,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-04-05 15:39:10,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:10,262 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:10,262 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-04-05 15:39:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:10,354 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:10,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 15:39:10,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:39:10,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:39:10,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:39:10,355 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 6 states. [2018-04-05 15:39:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:10,759 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-04-05 15:39:10,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:39:10,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-04-05 15:39:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:10,765 INFO L225 Difference]: With dead ends: 102 [2018-04-05 15:39:10,765 INFO L226 Difference]: Without dead ends: 101 [2018-04-05 15:39:10,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-05 15:39:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-04-05 15:39:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2018-04-05 15:39:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-04-05 15:39:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2018-04-05 15:39:10,791 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 52 [2018-04-05 15:39:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:10,792 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2018-04-05 15:39:10,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:39:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2018-04-05 15:39:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 15:39:10,801 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:10,802 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] [2018-04-05 15:39:10,802 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:10,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2049691576, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:10,834 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:10,881 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:10,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:39:10,888 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:10,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:39:10,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:11,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:11,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:39:11,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:11,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:39:11,102 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:11,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:11,155 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:11,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:39:11,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:11,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:11,195 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:39:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:13,357 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:16,884 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:16,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 38 [2018-04-05 15:39:16,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-04-05 15:39:16,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-04-05 15:39:16,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1369, Unknown=0, NotChecked=0, Total=1482 [2018-04-05 15:39:16,886 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 39 states. [2018-04-05 15:39:18,241 WARN L148 SmtUtils]: Spent 257ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 15:39:20,347 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-05 15:39:20,725 WARN L148 SmtUtils]: Spent 252ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 15:39:22,470 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 35 DAG size of output 32 [2018-04-05 15:39:23,398 WARN L151 SmtUtils]: Spent 472ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:39:24,284 WARN L151 SmtUtils]: Spent 346ms on a formula simplification. DAG size of input: 51 DAG size of output 50 [2018-04-05 15:39:24,913 WARN L151 SmtUtils]: Spent 474ms on a formula simplification. DAG size of input: 29 DAG size of output 28 [2018-04-05 15:39:27,344 WARN L151 SmtUtils]: Spent 1177ms on a formula simplification. DAG size of input: 32 DAG size of output 31 [2018-04-05 15:39:27,719 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 15:39:27,952 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:39:28,287 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 15:39:28,539 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:39:28,907 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 36 DAG size of output 33 [2018-04-05 15:39:29,456 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:39:29,971 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:39:31,753 WARN L151 SmtUtils]: Spent 248ms on a formula simplification. DAG size of input: 34 DAG size of output 33 [2018-04-05 15:39:31,985 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:39:32,510 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:39:32,982 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:39:34,146 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 15:39:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:34,569 INFO L93 Difference]: Finished difference Result 183 states and 196 transitions. [2018-04-05 15:39:34,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-05 15:39:34,570 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 52 [2018-04-05 15:39:34,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:34,571 INFO L225 Difference]: With dead ends: 183 [2018-04-05 15:39:34,572 INFO L226 Difference]: Without dead ends: 182 [2018-04-05 15:39:34,576 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=817, Invalid=6323, Unknown=0, NotChecked=0, Total=7140 [2018-04-05 15:39:34,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-05 15:39:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 113. [2018-04-05 15:39:34,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-04-05 15:39:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2018-04-05 15:39:34,612 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 52 [2018-04-05 15:39:34,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:34,613 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2018-04-05 15:39:34,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-04-05 15:39:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2018-04-05 15:39:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 15:39:34,614 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:34,615 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:34,615 INFO L408 AbstractCegarLoop]: === Iteration 11 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2055721887, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:34,631 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:34,690 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:34,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:39:34,707 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:39:34,738 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,756 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:39:34,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:34,838 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:34,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:39:34,840 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:39:34,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:34,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:39:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:35,900 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:37,984 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:39:37,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 30 [2018-04-05 15:39:37,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-05 15:39:37,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-05 15:39:37,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2018-04-05 15:39:37,985 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand 31 states. [2018-04-05 15:39:38,210 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:39:40,690 WARN L151 SmtUtils]: Spent 198ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 15:39:41,184 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 15:39:41,820 WARN L151 SmtUtils]: Spent 289ms on a formula simplification. DAG size of input: 41 DAG size of output 40 [2018-04-05 15:39:42,347 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:39:42,733 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:39:43,098 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 28 DAG size of output 27 [2018-04-05 15:39:43,459 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 15:39:43,879 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 36 DAG size of output 35 [2018-04-05 15:39:44,723 WARN L151 SmtUtils]: Spent 253ms on a formula simplification. DAG size of input: 41 DAG size of output 38 [2018-04-05 15:39:46,180 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 15:39:46,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:46,657 INFO L93 Difference]: Finished difference Result 178 states and 191 transitions. [2018-04-05 15:39:46,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-05 15:39:46,658 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 53 [2018-04-05 15:39:46,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:46,659 INFO L225 Difference]: With dead ends: 178 [2018-04-05 15:39:46,660 INFO L226 Difference]: Without dead ends: 177 [2018-04-05 15:39:46,661 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=422, Invalid=2770, Unknown=0, NotChecked=0, Total=3192 [2018-04-05 15:39:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-04-05 15:39:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2018-04-05 15:39:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-05 15:39:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2018-04-05 15:39:46,676 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 53 [2018-04-05 15:39:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:46,676 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2018-04-05 15:39:46,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-05 15:39:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2018-04-05 15:39:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 15:39:46,679 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:46,680 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:46,680 INFO L408 AbstractCegarLoop]: === Iteration 12 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:46,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1011159860, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:46,696 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:46,728 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:46,852 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:46,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 15:39:46,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 15:39:46,863 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:46,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:46,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:39:46,904 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:39:47,049 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 15:39:47,067 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 15:39:47,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:39:47,118 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:47,403 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_16| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_16| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:39:47,417 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) is different from false [2018-04-05 15:39:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:39:47,530 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:47,531 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:39:47,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:39:47,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:39:47,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:39:47,532 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand 12 states. [2018-04-05 15:39:47,577 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:39:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:48,927 INFO L93 Difference]: Finished difference Result 239 states and 258 transitions. [2018-04-05 15:39:48,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:39:48,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-04-05 15:39:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:48,931 INFO L225 Difference]: With dead ends: 239 [2018-04-05 15:39:48,931 INFO L226 Difference]: Without dead ends: 227 [2018-04-05 15:39:48,933 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:39:48,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-04-05 15:39:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2018-04-05 15:39:48,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-05 15:39:48,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2018-04-05 15:39:48,978 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 54 [2018-04-05 15:39:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:48,979 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2018-04-05 15:39:48,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:39:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2018-04-05 15:39:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-05 15:39:48,980 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:48,980 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:48,980 INFO L408 AbstractCegarLoop]: === Iteration 13 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:48,980 INFO L82 PathProgramCache]: Analyzing trace with hash 415297934, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:49,000 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:49,031 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:49,216 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 11 treesize of output 8 [2018-04-05 15:39:49,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:39:49,228 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:49,244 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:49,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:49,258 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-05 15:39:49,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:49,600 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:50,240 WARN L148 SmtUtils]: Spent 158ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 15:39:50,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:39:50,579 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 5 treesize of output 3 [2018-04-05 15:39:50,580 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:50,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:50,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:50,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:13, output treesize:3 [2018-04-05 15:39:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:50,675 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-05 15:39:50,675 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 15 [2018-04-05 15:39:50,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-05 15:39:50,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-05 15:39:50,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-04-05 15:39:50,676 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 15 states. [2018-04-05 15:39:52,009 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:39:52,394 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-05 15:39:52,673 WARN L148 SmtUtils]: Spent 230ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 15:39:53,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:53,448 INFO L93 Difference]: Finished difference Result 296 states and 317 transitions. [2018-04-05 15:39:53,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-05 15:39:53,448 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2018-04-05 15:39:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:53,458 INFO L225 Difference]: With dead ends: 296 [2018-04-05 15:39:53,458 INFO L226 Difference]: Without dead ends: 288 [2018-04-05 15:39:53,459 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2018-04-05 15:39:53,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-04-05 15:39:53,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 257. [2018-04-05 15:39:53,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-04-05 15:39:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2018-04-05 15:39:53,546 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 55 [2018-04-05 15:39:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:53,546 INFO L459 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2018-04-05 15:39:53,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-05 15:39:53,547 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2018-04-05 15:39:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-05 15:39:53,549 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:53,549 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:53,549 INFO L408 AbstractCegarLoop]: === Iteration 14 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:53,550 INFO L82 PathProgramCache]: Analyzing trace with hash -609999223, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:53,581 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:53,629 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:53,773 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:53,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:39:53,795 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:53,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:39:53,796 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:53,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:53,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:39:53,855 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:39:53,989 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 15:39:54,007 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 15:39:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:39:54,023 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:54,282 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_20| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_20|))))) is different from false [2018-04-05 15:39:54,313 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|)))))) is different from false [2018-04-05 15:39:54,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:39:54,446 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:54,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:39:54,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:39:54,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:39:54,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:39:54,447 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 12 states. [2018-04-05 15:39:54,523 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|))))))) is different from false [2018-04-05 15:39:56,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:56,466 INFO L93 Difference]: Finished difference Result 388 states and 419 transitions. [2018-04-05 15:39:56,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:39:56,467 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-04-05 15:39:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:56,472 INFO L225 Difference]: With dead ends: 388 [2018-04-05 15:39:56,472 INFO L226 Difference]: Without dead ends: 368 [2018-04-05 15:39:56,473 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:39:56,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-04-05 15:39:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 176. [2018-04-05 15:39:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-05 15:39:56,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-04-05 15:39:56,526 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 55 [2018-04-05 15:39:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:56,527 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-04-05 15:39:56,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:39:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-04-05 15:39:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-05 15:39:56,537 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:56,537 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:56,537 INFO L408 AbstractCegarLoop]: === Iteration 15 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:56,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1776017105, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:56,556 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:56,590 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:56,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:56,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 15:39:56,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 15:39:56,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:56,782 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:56,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:39:56,804 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:39:56,966 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 15:39:56,983 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 15:39:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:57,000 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:39:57,088 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_22| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_22|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_22| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:39:57,097 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) is different from false [2018-04-05 15:39:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:57,171 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:39:57,172 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:39:57,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:39:57,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:39:57,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:39:57,173 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 12 states. [2018-04-05 15:39:57,251 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:39:58,934 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 15:39:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:39:59,353 INFO L93 Difference]: Finished difference Result 309 states and 325 transitions. [2018-04-05 15:39:59,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:39:59,353 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2018-04-05 15:39:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:39:59,355 INFO L225 Difference]: With dead ends: 309 [2018-04-05 15:39:59,355 INFO L226 Difference]: Without dead ends: 297 [2018-04-05 15:39:59,356 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 109 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:39:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-04-05 15:39:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 176. [2018-04-05 15:39:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-05 15:39:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-04-05 15:39:59,424 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 60 [2018-04-05 15:39:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:39:59,425 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-04-05 15:39:59,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:39:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-04-05 15:39:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-05 15:39:59,434 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:39:59,434 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:39:59,434 INFO L408 AbstractCegarLoop]: === Iteration 16 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:39:59,434 INFO L82 PathProgramCache]: Analyzing trace with hash -105397872, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:39:59,460 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:39:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:39:59,524 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:39:59,690 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:59,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 15:39:59,715 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:39:59,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 15:39:59,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:39:59,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:39:59,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 15:39:59,807 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 15:39:59,948 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 15:39:59,963 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 15:39:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:39:59,982 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:40:00,382 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_24| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_24| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_24|))))) is different from false [2018-04-05 15:40:00,397 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) is different from false [2018-04-05 15:40:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:00,495 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:40:00,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 15:40:00,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 15:40:00,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 15:40:00,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 15:40:00,497 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 12 states. [2018-04-05 15:40:00,539 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 15:40:02,354 WARN L151 SmtUtils]: Spent 194ms on a formula simplification. DAG size of input: 21 DAG size of output 20 [2018-04-05 15:40:02,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:40:02,617 INFO L93 Difference]: Finished difference Result 250 states and 263 transitions. [2018-04-05 15:40:02,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:40:02,618 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2018-04-05 15:40:02,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:40:02,619 INFO L225 Difference]: With dead ends: 250 [2018-04-05 15:40:02,619 INFO L226 Difference]: Without dead ends: 238 [2018-04-05 15:40:02,620 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 15:40:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-04-05 15:40:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 115. [2018-04-05 15:40:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-04-05 15:40:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 121 transitions. [2018-04-05 15:40:02,647 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 121 transitions. Word has length 61 [2018-04-05 15:40:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:40:02,647 INFO L459 AbstractCegarLoop]: Abstraction has 115 states and 121 transitions. [2018-04-05 15:40:02,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 15:40:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 121 transitions. [2018-04-05 15:40:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-05 15:40:02,648 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:40:02,649 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:40:02,649 INFO L408 AbstractCegarLoop]: === Iteration 17 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:40:02,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1803017946, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:40:02,675 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:40:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:40:02,743 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:40:02,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:02,755 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:02,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:02,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:02,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:02,831 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:40:02,924 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:02,929 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:02,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:40:02,930 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:02,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:40:02,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:03,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:03,020 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:40:05,615 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 13 DAG size of output 10 [2018-04-05 15:40:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:05,799 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:40:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:11,515 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:40:11,515 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2018-04-05 15:40:11,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-05 15:40:11,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-05 15:40:11,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2200, Unknown=0, NotChecked=0, Total=2352 [2018-04-05 15:40:11,517 INFO L87 Difference]: Start difference. First operand 115 states and 121 transitions. Second operand 49 states. [2018-04-05 15:40:11,808 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:40:12,638 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:40:15,991 WARN L151 SmtUtils]: Spent 232ms on a formula simplification. DAG size of input: 38 DAG size of output 34 [2018-04-05 15:40:16,658 WARN L148 SmtUtils]: Spent 398ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 15:40:17,199 WARN L151 SmtUtils]: Spent 164ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:40:18,222 WARN L151 SmtUtils]: Spent 223ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:40:18,546 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:40:19,070 WARN L151 SmtUtils]: Spent 291ms on a formula simplification. DAG size of input: 35 DAG size of output 34 [2018-04-05 15:40:19,509 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:40:19,838 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:40:20,133 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 15:40:20,485 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:40:20,894 WARN L148 SmtUtils]: Spent 175ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:40:21,416 WARN L151 SmtUtils]: Spent 241ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-04-05 15:40:22,049 WARN L148 SmtUtils]: Spent 138ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:40:22,244 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:40:22,571 WARN L148 SmtUtils]: Spent 143ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:40:22,916 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 15:40:23,305 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:40:24,117 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:40:24,625 WARN L151 SmtUtils]: Spent 278ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 15:40:25,088 WARN L151 SmtUtils]: Spent 262ms on a formula simplification. DAG size of input: 47 DAG size of output 44 [2018-04-05 15:40:25,372 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:40:25,725 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 15:40:26,026 WARN L148 SmtUtils]: Spent 173ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:40:26,957 WARN L151 SmtUtils]: Spent 493ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 15:40:27,529 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 48 DAG size of output 45 [2018-04-05 15:40:27,880 WARN L148 SmtUtils]: Spent 166ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:40:28,314 WARN L148 SmtUtils]: Spent 177ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:40:28,932 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:40:29,264 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:40:29,565 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:40:29,943 WARN L148 SmtUtils]: Spent 201ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 15:40:30,237 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:40:30,566 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:40:31,327 WARN L151 SmtUtils]: Spent 233ms on a formula simplification. DAG size of input: 49 DAG size of output 47 [2018-04-05 15:40:32,314 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:40:32,613 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:40:33,088 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:40:33,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:40:33,932 INFO L93 Difference]: Finished difference Result 178 states and 186 transitions. [2018-04-05 15:40:33,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-05 15:40:33,933 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 61 [2018-04-05 15:40:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:40:33,934 INFO L225 Difference]: With dead ends: 178 [2018-04-05 15:40:33,934 INFO L226 Difference]: Without dead ends: 177 [2018-04-05 15:40:33,942 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2327 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=1219, Invalid=10553, Unknown=0, NotChecked=0, Total=11772 [2018-04-05 15:40:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-04-05 15:40:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 138. [2018-04-05 15:40:33,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-04-05 15:40:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 144 transitions. [2018-04-05 15:40:33,979 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 144 transitions. Word has length 61 [2018-04-05 15:40:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:40:33,980 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 144 transitions. [2018-04-05 15:40:33,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-05 15:40:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2018-04-05 15:40:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-05 15:40:33,981 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:40:33,982 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-04-05 15:40:33,982 INFO L408 AbstractCegarLoop]: === Iteration 18 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:40:33,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1306320949, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:40:33,999 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:40:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:40:34,041 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:40:34,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:34,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,060 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:40:34,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:34,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,123 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:34,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:34,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:40:34,132 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,161 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 15:40:34,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:40:34,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:40:34,289 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,327 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,334 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:34,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 15:40:35,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 15:40:35,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:40:35,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:35,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:35,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:35,364 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 15:40:35,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 15:40:35,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-05 15:40:35,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:40:35,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:40:35,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:40:35,815 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 15:40:36,308 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:36,309 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:40:39,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-04-05 15:40:39,506 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:40:39,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:40:39,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:39,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-04-05 15:40:39,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-04-05 15:40:39,604 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:39,627 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:39,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 15:40:39,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-04-05 15:40:39,636 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:39,644 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:39,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:40:39,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:40:39,866 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-05 15:40:40,477 WARN L151 SmtUtils]: Spent 373ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 15:40:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:41,180 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:40:41,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-05 15:40:41,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-05 15:40:41,181 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-05 15:40:41,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-04-05 15:40:41,182 INFO L87 Difference]: Start difference. First operand 138 states and 144 transitions. Second operand 42 states. [2018-04-05 15:40:43,731 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:40:44,091 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 82 DAG size of output 65 [2018-04-05 15:40:44,671 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 59 DAG size of output 49 [2018-04-05 15:40:44,995 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 39 DAG size of output 29 [2018-04-05 15:40:45,323 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 46 DAG size of output 34 [2018-04-05 15:40:45,591 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 30 DAG size of output 27 [2018-04-05 15:40:45,915 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 37 DAG size of output 32 [2018-04-05 15:40:46,191 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 21 DAG size of output 19 [2018-04-05 15:40:46,672 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 15:40:47,330 WARN L151 SmtUtils]: Spent 348ms on a formula simplification. DAG size of input: 32 DAG size of output 29 [2018-04-05 15:40:47,986 WARN L151 SmtUtils]: Spent 312ms on a formula simplification. DAG size of input: 38 DAG size of output 33 [2018-04-05 15:40:48,336 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 15:40:50,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:40:50,109 INFO L93 Difference]: Finished difference Result 171 states and 177 transitions. [2018-04-05 15:40:50,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-05 15:40:50,109 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 67 [2018-04-05 15:40:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:40:50,111 INFO L225 Difference]: With dead ends: 171 [2018-04-05 15:40:50,111 INFO L226 Difference]: Without dead ends: 170 [2018-04-05 15:40:50,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=416, Invalid=4006, Unknown=0, NotChecked=0, Total=4422 [2018-04-05 15:40:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-04-05 15:40:50,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 138. [2018-04-05 15:40:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-04-05 15:40:50,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 143 transitions. [2018-04-05 15:40:50,201 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 143 transitions. Word has length 67 [2018-04-05 15:40:50,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:40:50,202 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 143 transitions. [2018-04-05 15:40:50,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-05 15:40:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 143 transitions. [2018-04-05 15:40:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-05 15:40:50,203 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:40:50,203 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:40:50,203 INFO L408 AbstractCegarLoop]: === Iteration 19 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:40:50,203 INFO L82 PathProgramCache]: Analyzing trace with hash 239796070, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:40:50,234 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:40:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:40:50,305 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:40:50,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:50,324 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:40:50,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,403 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:40:50,502 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:50,510 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:40:50,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:40:50,511 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:40:50,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:40:50,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:40:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:40:54,664 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:40:58,262 WARN L148 SmtUtils]: Spent 195ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:40:59,423 WARN L148 SmtUtils]: Spent 180ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:41:02,420 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 15:41:03,276 WARN L148 SmtUtils]: Spent 309ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-05 15:41:06,113 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 22 DAG size of output 18 [2018-04-05 15:41:08,175 WARN L148 SmtUtils]: Spent 292ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 15:41:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:41:11,350 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:41:11,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 68 [2018-04-05 15:41:11,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-05 15:41:11,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-05 15:41:11,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=4410, Unknown=0, NotChecked=0, Total=4692 [2018-04-05 15:41:11,352 INFO L87 Difference]: Start difference. First operand 138 states and 143 transitions. Second operand 69 states. [2018-04-05 15:41:11,810 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:41:12,886 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:41:18,495 WARN L151 SmtUtils]: Spent 1318ms on a formula simplification. DAG size of input: 42 DAG size of output 38 [2018-04-05 15:41:19,791 WARN L148 SmtUtils]: Spent 533ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 15:41:20,503 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:41:21,745 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 35 DAG size of output 34 [2018-04-05 15:41:22,972 WARN L151 SmtUtils]: Spent 368ms on a formula simplification. DAG size of input: 41 DAG size of output 40 [2018-04-05 15:41:24,024 WARN L148 SmtUtils]: Spent 578ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:41:24,471 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:41:24,852 WARN L148 SmtUtils]: Spent 179ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:41:25,390 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:41:25,988 WARN L148 SmtUtils]: Spent 227ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 15:41:27,485 WARN L151 SmtUtils]: Spent 759ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-04-05 15:41:28,355 WARN L148 SmtUtils]: Spent 194ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:41:28,981 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:41:29,436 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:41:29,928 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 15:41:30,403 WARN L148 SmtUtils]: Spent 161ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:41:31,449 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:41:31,880 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:41:32,417 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 49 DAG size of output 43 [2018-04-05 15:41:32,876 WARN L148 SmtUtils]: Spent 178ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:41:33,159 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:41:33,671 WARN L148 SmtUtils]: Spent 261ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:41:34,041 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:41:34,537 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:41:35,268 WARN L148 SmtUtils]: Spent 236ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 15:41:35,870 WARN L148 SmtUtils]: Spent 250ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:41:36,165 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:41:37,028 WARN L148 SmtUtils]: Spent 550ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:41:37,511 WARN L148 SmtUtils]: Spent 228ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:41:38,054 WARN L148 SmtUtils]: Spent 135ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:41:39,249 WARN L148 SmtUtils]: Spent 291ms on a formula simplification that was a NOOP. DAG size: 55 [2018-04-05 15:41:39,967 WARN L148 SmtUtils]: Spent 391ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:41:40,425 WARN L148 SmtUtils]: Spent 192ms on a formula simplification that was a NOOP. DAG size: 54 [2018-04-05 15:41:41,000 WARN L151 SmtUtils]: Spent 302ms on a formula simplification. DAG size of input: 56 DAG size of output 45 [2018-04-05 15:41:41,731 WARN L151 SmtUtils]: Spent 439ms on a formula simplification. DAG size of input: 57 DAG size of output 54 [2018-04-05 15:41:42,053 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:41:42,395 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:41:42,800 WARN L148 SmtUtils]: Spent 156ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:41:43,225 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:41:43,886 WARN L148 SmtUtils]: Spent 386ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 15:41:44,482 WARN L148 SmtUtils]: Spent 174ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 15:41:44,889 WARN L148 SmtUtils]: Spent 178ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:41:45,357 WARN L148 SmtUtils]: Spent 175ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 15:41:45,764 WARN L148 SmtUtils]: Spent 159ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:41:46,222 WARN L148 SmtUtils]: Spent 163ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 15:41:46,661 WARN L148 SmtUtils]: Spent 174ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 15:41:47,493 WARN L151 SmtUtils]: Spent 508ms on a formula simplification. DAG size of input: 66 DAG size of output 59 [2018-04-05 15:41:47,959 WARN L148 SmtUtils]: Spent 212ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 15:41:48,921 WARN L151 SmtUtils]: Spent 673ms on a formula simplification. DAG size of input: 67 DAG size of output 60 [2018-04-05 15:41:49,998 WARN L151 SmtUtils]: Spent 575ms on a formula simplification. DAG size of input: 56 DAG size of output 53 [2018-04-05 15:41:50,608 WARN L151 SmtUtils]: Spent 413ms on a formula simplification. DAG size of input: 54 DAG size of output 47 [2018-04-05 15:41:50,949 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:41:51,969 WARN L151 SmtUtils]: Spent 755ms on a formula simplification. DAG size of input: 76 DAG size of output 62 [2018-04-05 15:41:52,938 WARN L151 SmtUtils]: Spent 655ms on a formula simplification. DAG size of input: 72 DAG size of output 61 [2018-04-05 15:41:53,389 WARN L148 SmtUtils]: Spent 179ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 15:41:53,996 WARN L148 SmtUtils]: Spent 197ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:41:55,061 WARN L151 SmtUtils]: Spent 828ms on a formula simplification. DAG size of input: 48 DAG size of output 44 [2018-04-05 15:41:55,484 WARN L148 SmtUtils]: Spent 142ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 15:41:56,375 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 15:41:56,989 WARN L148 SmtUtils]: Spent 352ms on a formula simplification that was a NOOP. DAG size: 55 [2018-04-05 15:41:57,559 WARN L148 SmtUtils]: Spent 173ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 15:41:58,082 WARN L148 SmtUtils]: Spent 286ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 15:41:58,527 WARN L148 SmtUtils]: Spent 164ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 15:41:59,228 WARN L151 SmtUtils]: Spent 464ms on a formula simplification. DAG size of input: 51 DAG size of output 49 [2018-04-05 15:41:59,850 WARN L151 SmtUtils]: Spent 360ms on a formula simplification. DAG size of input: 53 DAG size of output 51 [2018-04-05 15:42:00,530 WARN L151 SmtUtils]: Spent 269ms on a formula simplification. DAG size of input: 45 DAG size of output 41 [2018-04-05 15:42:00,893 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 15:42:01,569 WARN L151 SmtUtils]: Spent 419ms on a formula simplification. DAG size of input: 61 DAG size of output 53 [2018-04-05 15:42:02,340 WARN L151 SmtUtils]: Spent 492ms on a formula simplification. DAG size of input: 58 DAG size of output 52 [2018-04-05 15:42:02,761 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 15:42:03,171 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 15:42:03,823 WARN L151 SmtUtils]: Spent 390ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:42:04,640 WARN L148 SmtUtils]: Spent 210ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 15:42:04,994 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:42:05,384 WARN L148 SmtUtils]: Spent 162ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:42:05,995 WARN L148 SmtUtils]: Spent 321ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:42:06,390 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 15:42:06,776 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 15:42:07,331 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 15:42:08,076 WARN L151 SmtUtils]: Spent 419ms on a formula simplification. DAG size of input: 46 DAG size of output 44 [2018-04-05 15:42:08,783 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:42:09,132 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:42:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:42:10,170 INFO L93 Difference]: Finished difference Result 233 states and 242 transitions. [2018-04-05 15:42:10,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-04-05 15:42:10,171 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 79 [2018-04-05 15:42:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:42:10,172 INFO L225 Difference]: With dead ends: 233 [2018-04-05 15:42:10,172 INFO L226 Difference]: Without dead ends: 232 [2018-04-05 15:42:10,181 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6957 ImplicationChecksByTransitivity, 69.3s TimeCoverageRelationStatistics Valid=2849, Invalid=26907, Unknown=0, NotChecked=0, Total=29756 [2018-04-05 15:42:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-04-05 15:42:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2018-04-05 15:42:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-04-05 15:42:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 206 transitions. [2018-04-05 15:42:10,245 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 206 transitions. Word has length 79 [2018-04-05 15:42:10,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:42:10,248 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 206 transitions. [2018-04-05 15:42:10,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-04-05 15:42:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 206 transitions. [2018-04-05 15:42:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-05 15:42:10,253 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:42:10,253 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:42:10,253 INFO L408 AbstractCegarLoop]: === Iteration 20 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:42:10,254 INFO L82 PathProgramCache]: Analyzing trace with hash -742476633, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:42:10,276 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:42:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:42:10,321 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:42:10,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:42:10,334 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,352 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:42:10,412 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:42:10,420 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:42:10,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:42:10,421 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:42:10,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,490 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 15:42:10,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 15:42:10,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:42:10,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:10,699 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 15:42:11,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 15:42:11,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:42:11,619 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:11,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:11,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:11,697 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-04-05 15:42:12,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 15:42:12,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:42:12,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:12,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:12,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:12,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 15:42:12,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 15:42:12,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-05 15:42:12,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:12,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:42:12,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:42:12,741 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 15:42:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:42:13,288 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:42:14,661 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:42:16,306 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 15:42:18,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2018-04-05 15:42:18,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 15:42:18,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:18,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-04-05 15:42:18,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 34 [2018-04-05 15:42:18,908 WARN L148 SmtUtils]: Spent 171ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:42:18,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2018-04-05 15:42:18,945 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:18,956 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 24 treesize of output 18 [2018-04-05 15:42:18,957 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:18,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2018-04-05 15:42:18,993 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:19,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-04-05 15:42:19,314 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-04-05 15:42:19,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2018-04-05 15:42:19,352 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:19,547 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:42:19,684 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:42:19,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2018-04-05 15:42:19,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2018-04-05 15:42:19,734 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:19,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 60 [2018-04-05 15:42:20,460 WARN L151 SmtUtils]: Spent 527ms on a formula simplification. DAG size of input: 65 DAG size of output 54 [2018-04-05 15:42:20,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2018-04-05 15:42:20,545 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2018-04-05 15:42:20,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-04-05 15:42:20,628 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-04-05 15:42:21,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2018-04-05 15:42:21,090 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:21,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-04-05 15:42:21,453 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:21,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-04-05 15:42:21,497 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-04-05 15:42:21,707 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:42:21,931 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-05 15:42:21,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-04-05 15:42:21,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-04-05 15:42:21,952 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:21,976 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:22,211 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 15:42:22,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 15:42:22,493 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:60, output treesize:84 [2018-04-05 15:42:23,055 WARN L151 SmtUtils]: Spent 306ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 15:42:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:42:23,988 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:42:23,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-04-05 15:42:23,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 15:42:23,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 15:42:23,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2474, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 15:42:23,990 INFO L87 Difference]: Start difference. First operand 200 states and 206 transitions. Second operand 52 states. [2018-04-05 15:42:26,944 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:42:27,599 WARN L151 SmtUtils]: Spent 282ms on a formula simplification. DAG size of input: 87 DAG size of output 70 [2018-04-05 15:42:28,441 WARN L151 SmtUtils]: Spent 304ms on a formula simplification. DAG size of input: 87 DAG size of output 53 [2018-04-05 15:42:29,004 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 76 DAG size of output 42 [2018-04-05 15:42:30,277 WARN L151 SmtUtils]: Spent 696ms on a formula simplification. DAG size of input: 82 DAG size of output 47 [2018-04-05 15:42:30,622 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 44 DAG size of output 41 [2018-04-05 15:42:31,030 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 51 DAG size of output 46 [2018-04-05 15:42:31,603 WARN L151 SmtUtils]: Spent 167ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 15:42:32,534 WARN L151 SmtUtils]: Spent 269ms on a formula simplification. DAG size of input: 49 DAG size of output 47 [2018-04-05 15:42:32,977 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 52 DAG size of output 47 [2018-04-05 15:42:33,517 WARN L151 SmtUtils]: Spent 347ms on a formula simplification. DAG size of input: 57 DAG size of output 52 [2018-04-05 15:42:34,120 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 49 DAG size of output 44 [2018-04-05 15:42:34,580 WARN L151 SmtUtils]: Spent 231ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 15:42:35,109 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 53 DAG size of output 49 [2018-04-05 15:42:35,536 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 15:42:36,040 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 15:42:36,551 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 30 DAG size of output 28 [2018-04-05 15:42:37,222 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 15:42:37,923 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 15:42:38,597 WARN L151 SmtUtils]: Spent 367ms on a formula simplification. DAG size of input: 48 DAG size of output 37 [2018-04-05 15:42:39,416 WARN L151 SmtUtils]: Spent 532ms on a formula simplification. DAG size of input: 58 DAG size of output 45 [2018-04-05 15:42:40,309 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 53 DAG size of output 40 [2018-04-05 15:42:40,699 WARN L151 SmtUtils]: Spent 176ms on a formula simplification. DAG size of input: 47 DAG size of output 38 [2018-04-05 15:42:41,147 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 52 DAG size of output 43 [2018-04-05 15:42:41,442 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 15:42:41,860 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 15:42:42,229 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-04-05 15:42:42,742 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 15:42:43,188 WARN L151 SmtUtils]: Spent 311ms on a formula simplification. DAG size of input: 51 DAG size of output 39 [2018-04-05 15:42:43,684 WARN L151 SmtUtils]: Spent 272ms on a formula simplification. DAG size of input: 60 DAG size of output 45 [2018-04-05 15:42:44,264 WARN L151 SmtUtils]: Spent 206ms on a formula simplification. DAG size of input: 55 DAG size of output 40 [2018-04-05 15:42:44,742 WARN L151 SmtUtils]: Spent 267ms on a formula simplification. DAG size of input: 49 DAG size of output 38 [2018-04-05 15:42:45,257 WARN L151 SmtUtils]: Spent 285ms on a formula simplification. DAG size of input: 54 DAG size of output 43 [2018-04-05 15:42:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:42:45,336 INFO L93 Difference]: Finished difference Result 224 states and 231 transitions. [2018-04-05 15:42:45,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-05 15:42:45,337 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 82 [2018-04-05 15:42:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:42:45,338 INFO L225 Difference]: With dead ends: 224 [2018-04-05 15:42:45,338 INFO L226 Difference]: Without dead ends: 223 [2018-04-05 15:42:45,339 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1717 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=1417, Invalid=7703, Unknown=0, NotChecked=0, Total=9120 [2018-04-05 15:42:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-04-05 15:42:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2018-04-05 15:42:45,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-04-05 15:42:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 205 transitions. [2018-04-05 15:42:45,390 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 205 transitions. Word has length 82 [2018-04-05 15:42:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:42:45,390 INFO L459 AbstractCegarLoop]: Abstraction has 199 states and 205 transitions. [2018-04-05 15:42:45,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 15:42:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 205 transitions. [2018-04-05 15:42:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-05 15:42:45,391 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:42:45,391 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:42:45,392 INFO L408 AbstractCegarLoop]: === Iteration 21 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:42:45,392 INFO L82 PathProgramCache]: Analyzing trace with hash 466654152, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:42:45,431 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:42:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:42:45,541 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:42:45,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:42:45,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:45,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:42:45,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:45,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:45,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:42:45,924 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:42:45,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:42:45,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:46,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:42:46,055 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:42:46,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:42:46,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:42:46,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:42:46,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:42:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:42:49,579 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:42:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:42:57,017 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:42:57,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 54 [2018-04-05 15:42:57,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-05 15:42:57,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-05 15:42:57,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2781, Unknown=0, NotChecked=0, Total=2970 [2018-04-05 15:42:57,019 INFO L87 Difference]: Start difference. First operand 199 states and 205 transitions. Second operand 55 states. [2018-04-05 15:42:57,393 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:43:00,819 WARN L148 SmtUtils]: Spent 163ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-05 15:43:02,582 WARN L151 SmtUtils]: Spent 286ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 15:43:03,544 WARN L151 SmtUtils]: Spent 167ms on a formula simplification. DAG size of input: 40 DAG size of output 29 [2018-04-05 15:43:04,329 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 36 DAG size of output 28 [2018-04-05 15:43:04,929 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 41 DAG size of output 36 [2018-04-05 15:43:05,484 WARN L151 SmtUtils]: Spent 301ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 15:43:05,880 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 35 DAG size of output 28 [2018-04-05 15:43:06,402 WARN L151 SmtUtils]: Spent 279ms on a formula simplification. DAG size of input: 47 DAG size of output 37 [2018-04-05 15:43:07,040 WARN L151 SmtUtils]: Spent 321ms on a formula simplification. DAG size of input: 42 DAG size of output 37 [2018-04-05 15:43:08,020 WARN L151 SmtUtils]: Spent 169ms on a formula simplification. DAG size of input: 30 DAG size of output 28 [2018-04-05 15:43:08,501 WARN L151 SmtUtils]: Spent 224ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 15:43:09,319 WARN L151 SmtUtils]: Spent 268ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:43:10,472 WARN L151 SmtUtils]: Spent 337ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 15:43:11,189 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:43:11,804 WARN L148 SmtUtils]: Spent 388ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:43:12,514 WARN L151 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 15:43:13,295 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 15:43:13,752 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 15:43:15,127 WARN L151 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 15:43:15,461 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:43:16,093 WARN L151 SmtUtils]: Spent 360ms on a formula simplification. DAG size of input: 48 DAG size of output 42 [2018-04-05 15:43:16,899 WARN L151 SmtUtils]: Spent 521ms on a formula simplification. DAG size of input: 51 DAG size of output 49 [2018-04-05 15:43:17,369 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 15:43:17,795 WARN L151 SmtUtils]: Spent 274ms on a formula simplification. DAG size of input: 43 DAG size of output 35 [2018-04-05 15:43:18,142 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 15:43:18,862 WARN L151 SmtUtils]: Spent 538ms on a formula simplification. DAG size of input: 62 DAG size of output 52 [2018-04-05 15:43:19,211 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:43:19,951 WARN L151 SmtUtils]: Spent 543ms on a formula simplification. DAG size of input: 59 DAG size of output 53 [2018-04-05 15:43:20,348 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 15:43:20,776 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:43:21,159 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:43:21,997 WARN L151 SmtUtils]: Spent 539ms on a formula simplification. DAG size of input: 59 DAG size of output 53 [2018-04-05 15:43:22,541 WARN L151 SmtUtils]: Spent 247ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 15:43:23,224 WARN L151 SmtUtils]: Spent 376ms on a formula simplification. DAG size of input: 48 DAG size of output 44 [2018-04-05 15:43:23,687 WARN L151 SmtUtils]: Spent 259ms on a formula simplification. DAG size of input: 39 DAG size of output 37 [2018-04-05 15:43:24,260 WARN L151 SmtUtils]: Spent 398ms on a formula simplification. DAG size of input: 51 DAG size of output 47 [2018-04-05 15:43:24,705 WARN L148 SmtUtils]: Spent 206ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 15:43:25,142 WARN L148 SmtUtils]: Spent 228ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 15:43:25,775 WARN L151 SmtUtils]: Spent 440ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 15:43:26,471 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 15:43:27,014 WARN L151 SmtUtils]: Spent 350ms on a formula simplification. DAG size of input: 51 DAG size of output 47 [2018-04-05 15:43:27,546 WARN L151 SmtUtils]: Spent 368ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 15:43:28,027 WARN L151 SmtUtils]: Spent 294ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 15:43:28,626 WARN L151 SmtUtils]: Spent 413ms on a formula simplification. DAG size of input: 48 DAG size of output 44 [2018-04-05 15:43:29,158 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 52 DAG size of output 48 [2018-04-05 15:43:29,724 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 15:43:30,379 WARN L151 SmtUtils]: Spent 261ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 15:43:30,847 WARN L151 SmtUtils]: Spent 278ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:43:31,154 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:43:31,791 WARN L151 SmtUtils]: Spent 448ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 15:43:32,142 WARN L148 SmtUtils]: Spent 140ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:43:32,452 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 30 [2018-04-05 15:43:33,048 WARN L151 SmtUtils]: Spent 385ms on a formula simplification. DAG size of input: 47 DAG size of output 45 [2018-04-05 15:43:33,803 WARN L151 SmtUtils]: Spent 307ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 15:43:34,425 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 39 DAG size of output 37 [2018-04-05 15:43:34,728 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:43:35,121 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 45 DAG size of output 43 [2018-04-05 15:43:35,606 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 39 DAG size of output 37 [2018-04-05 15:43:36,293 WARN L151 SmtUtils]: Spent 352ms on a formula simplification. DAG size of input: 48 DAG size of output 45 [2018-04-05 15:43:36,948 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 15:43:37,268 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:43:37,615 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:43:37,938 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 15:43:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:43:38,998 INFO L93 Difference]: Finished difference Result 379 states and 393 transitions. [2018-04-05 15:43:38,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-04-05 15:43:38,998 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 82 [2018-04-05 15:43:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:43:39,000 INFO L225 Difference]: With dead ends: 379 [2018-04-05 15:43:39,001 INFO L226 Difference]: Without dead ends: 378 [2018-04-05 15:43:39,004 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4860 ImplicationChecksByTransitivity, 44.3s TimeCoverageRelationStatistics Valid=2029, Invalid=18851, Unknown=0, NotChecked=0, Total=20880 [2018-04-05 15:43:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-04-05 15:43:39,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 250. [2018-04-05 15:43:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-04-05 15:43:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 263 transitions. [2018-04-05 15:43:39,120 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 263 transitions. Word has length 82 [2018-04-05 15:43:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:43:39,121 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 263 transitions. [2018-04-05 15:43:39,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-05 15:43:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 263 transitions. [2018-04-05 15:43:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-05 15:43:39,122 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:43:39,122 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:43:39,122 INFO L408 AbstractCegarLoop]: === Iteration 22 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:43:39,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1541939169, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:43:39,153 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:43:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:43:39,220 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:43:39,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:43:39,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:43:39,273 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:43:39,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:43:39,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:43:39,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:43:39,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:43:39,440 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:43:39,470 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:43:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:43:41,634 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:43:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:43:46,533 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:43:46,533 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2018-04-05 15:43:46,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-05 15:43:46,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-05 15:43:46,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1999, Unknown=0, NotChecked=0, Total=2162 [2018-04-05 15:43:46,534 INFO L87 Difference]: Start difference. First operand 250 states and 263 transitions. Second operand 47 states. [2018-04-05 15:43:49,932 WARN L151 SmtUtils]: Spent 181ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 15:43:50,629 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 46 DAG size of output 30 [2018-04-05 15:43:51,263 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 15:43:51,623 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 29 DAG size of output 28 [2018-04-05 15:43:51,925 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 30 DAG size of output 29 [2018-04-05 15:43:52,151 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 27 DAG size of output 26 [2018-04-05 15:43:52,492 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 15:43:52,862 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 33 DAG size of output 32 [2018-04-05 15:43:53,743 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 27 DAG size of output 26 [2018-04-05 15:43:54,180 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 30 DAG size of output 29 [2018-04-05 15:43:54,537 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 15:43:54,853 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 28 DAG size of output 27 [2018-04-05 15:43:55,305 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 37 DAG size of output 35 [2018-04-05 15:43:55,792 WARN L151 SmtUtils]: Spent 216ms on a formula simplification. DAG size of input: 34 DAG size of output 33 [2018-04-05 15:43:57,400 WARN L151 SmtUtils]: Spent 264ms on a formula simplification. DAG size of input: 45 DAG size of output 38 [2018-04-05 15:43:58,025 WARN L151 SmtUtils]: Spent 438ms on a formula simplification. DAG size of input: 49 DAG size of output 48 [2018-04-05 15:43:58,429 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 42 DAG size of output 35 [2018-04-05 15:43:59,036 WARN L151 SmtUtils]: Spent 446ms on a formula simplification. DAG size of input: 63 DAG size of output 50 [2018-04-05 15:43:59,862 WARN L151 SmtUtils]: Spent 602ms on a formula simplification. DAG size of input: 61 DAG size of output 51 [2018-04-05 15:44:00,551 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 39 DAG size of output 35 [2018-04-05 15:44:01,033 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 36 DAG size of output 32 [2018-04-05 15:44:01,545 WARN L151 SmtUtils]: Spent 353ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:44:02,097 WARN L151 SmtUtils]: Spent 365ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 15:44:02,572 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 36 DAG size of output 32 [2018-04-05 15:44:03,056 WARN L151 SmtUtils]: Spent 342ms on a formula simplification. DAG size of input: 52 DAG size of output 44 [2018-04-05 15:44:03,542 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 49 DAG size of output 43 [2018-04-05 15:44:03,932 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 15:44:04,241 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 29 DAG size of output 27 [2018-04-05 15:44:04,519 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:44:04,752 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:44:05,049 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 29 DAG size of output 27 [2018-04-05 15:44:05,552 WARN L151 SmtUtils]: Spent 370ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 15:44:06,251 WARN L151 SmtUtils]: Spent 261ms on a formula simplification. DAG size of input: 37 DAG size of output 35 [2018-04-05 15:44:07,647 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 15:44:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:44:08,047 INFO L93 Difference]: Finished difference Result 383 states and 396 transitions. [2018-04-05 15:44:08,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-05 15:44:08,051 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 83 [2018-04-05 15:44:08,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:44:08,053 INFO L225 Difference]: With dead ends: 383 [2018-04-05 15:44:08,053 INFO L226 Difference]: Without dead ends: 382 [2018-04-05 15:44:08,054 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1818 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=1182, Invalid=8520, Unknown=0, NotChecked=0, Total=9702 [2018-04-05 15:44:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-04-05 15:44:08,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 264. [2018-04-05 15:44:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-04-05 15:44:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 274 transitions. [2018-04-05 15:44:08,180 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 274 transitions. Word has length 83 [2018-04-05 15:44:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:44:08,181 INFO L459 AbstractCegarLoop]: Abstraction has 264 states and 274 transitions. [2018-04-05 15:44:08,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-05 15:44:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 274 transitions. [2018-04-05 15:44:08,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-05 15:44:08,182 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:44:08,182 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:44:08,182 INFO L408 AbstractCegarLoop]: === Iteration 23 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 15:44:08,182 INFO L82 PathProgramCache]: Analyzing trace with hash 153237420, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:44:08,208 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:44:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:44:08,316 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:44:08,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:08,341 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:44:08,395 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,432 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 15:44:08,529 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:08,534 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:44:08,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 15:44:08,535 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 15:44:08,588 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:44:08,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 15:44:11,367 WARN L148 SmtUtils]: Spent 185ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 15:44:12,806 WARN L148 SmtUtils]: Spent 176ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-05 15:44:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:14,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:44:22,095 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 22 DAG size of output 18 [2018-04-05 15:44:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:44:25,316 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:44:25,317 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-04-05 15:44:25,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-05 15:44:25,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-05 15:44:25,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=4176, Unknown=0, NotChecked=0, Total=4422 [2018-04-05 15:44:25,318 INFO L87 Difference]: Start difference. First operand 264 states and 274 transitions. Second operand 67 states.