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/count_down-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 12:03:52,856 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:03:52,858 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:03:52,873 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 12:03:52,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 12:03:52,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 12:03:52,875 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 12:03:52,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 12:03:52,879 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 12:03:52,880 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 12:03:52,881 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 12:03:52,881 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 12:03:52,882 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 12:03:52,883 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 12:03:52,884 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 12:03:52,886 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 12:03:52,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 12:03:52,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 12:03:52,891 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 12:03:52,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 12:03:52,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 12:03:52,895 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 12:03:52,895 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 12:03:52,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 12:03:52,897 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 12:03:52,898 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 12:03:52,898 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 12:03:52,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 12:03:52,900 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 12:03:52,900 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 12:03:52,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 12:03:52,901 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 12:03:52,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:03:52,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:03:52,925 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:03:52,926 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:03:52,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:03:52,927 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:03:52,927 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:03:52,927 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:03:52,927 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:03:52,927 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:03:52,928 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:03:52,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:03:52,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:03:52,928 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:03:52,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:03:52,930 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:03:52,930 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:03:52,930 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:03:52,930 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:03:52,930 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:03:52,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:03:52,931 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:03:52,931 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:03:52,931 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:03:52,931 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:03:52,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:03:52,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:52,932 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:03:52,933 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:03:52,933 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:03:52,933 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:03:52,933 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:03:52,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:03:52,979 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:03:52,983 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:03:52,984 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:03:52,985 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:03:52,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,319 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG5a756cd49 [2018-03-28 12:03:53,485 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:03:53,485 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:03:53,485 INFO L171 CDTParser]: Scanning count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,495 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:03:53,496 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:03:53,496 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:03:53,496 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,496 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,496 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,496 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 12:03:53,496 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__time_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,496 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____suseconds_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__div_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fd_set in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__lldiv_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,497 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_short in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____rlim_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__mode_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__uid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____dev_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__key_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,498 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____time_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____timer_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_char in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____off64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____id_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,499 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____rlim64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____blksize_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____qaddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____nlink_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,500 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ldiv_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ino_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,501 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__register_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____ssize_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__timer_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____off_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fd_mask in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,502 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ssize_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsword_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__nlink_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__sigset_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__uint in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__id_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____ino64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____key_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_int in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,503 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__dev_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____clock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__wchar_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____loff_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fsid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____useconds_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fd_mask in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__clockid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____clockid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__suseconds_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,504 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____gid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ushort in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__loff_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____daddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____pid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,505 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_short in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_char in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__off_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ulong in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__gid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_long in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____socklen_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__clock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__daddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,506 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____caddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__size_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_long in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____intptr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____mode_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__blksize_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__caddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,507 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____ino_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,508 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____sigset_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:53,527 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG5a756cd49 [2018-03-28 12:03:53,531 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:03:53,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:03:53,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:03:53,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:03:53,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:03:53,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24087fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53, skipping insertion in model container [2018-03-28 12:03:53,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,561 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:03:53,591 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:03:53,755 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:03:53,804 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:03:53,811 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-03-28 12:03:53,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53 WrapperNode [2018-03-28 12:03:53,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:03:53,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:03:53,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:03:53,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:03:53,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... [2018-03-28 12:03:53,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:03:53,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:03:53,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:03:53,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:03:53,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:03:54,016 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:03:54,017 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:03:54,017 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:03:54,017 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:03:54,017 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:03:54,017 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:03:54,017 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:03:54,018 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:03:54,019 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:03:54,020 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:03:54,021 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:03:54,022 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:03:54,023 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:03:54,024 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:03:54,025 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:03:54,026 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:03:54,027 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:03:54,028 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:03:54,029 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:03:54,030 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:03:54,031 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:03:54,366 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:03:54,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:03:54 BoogieIcfgContainer [2018-03-28 12:03:54,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:03:54,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:03:54,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:03:54,369 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:03:54,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:03:53" (1/3) ... [2018-03-28 12:03:54,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:03:54, skipping insertion in model container [2018-03-28 12:03:54,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:03:53" (2/3) ... [2018-03-28 12:03:54,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:03:54, skipping insertion in model container [2018-03-28 12:03:54,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:03:54" (3/3) ... [2018-03-28 12:03:54,372 INFO L107 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:03:54,378 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:03:54,384 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-28 12:03:54,427 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:03:54,428 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:03:54,428 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:03:54,428 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:03:54,428 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:03:54,428 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:03:54,428 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:03:54,429 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:03:54,429 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:03:54,429 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:03:54,445 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-03-28 12:03:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-28 12:03:54,449 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:54,450 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:54,450 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:54,453 INFO L82 PathProgramCache]: Analyzing trace with hash -894671567, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:54,464 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:54,498 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,531 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,576 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:54,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-28 12:03:54,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:03:54,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:03:54,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:03:54,590 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-03-28 12:03:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:54,657 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2018-03-28 12:03:54,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:03:54,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-28 12:03:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:54,667 INFO L225 Difference]: With dead ends: 94 [2018-03-28 12:03:54,668 INFO L226 Difference]: Without dead ends: 58 [2018-03-28 12:03:54,671 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:03:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-03-28 12:03:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-03-28 12:03:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-03-28 12:03:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-03-28 12:03:54,706 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 20 [2018-03-28 12:03:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:54,706 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-03-28 12:03:54,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:03:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-03-28 12:03:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:03:54,707 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:54,708 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] [2018-03-28 12:03:54,708 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:54,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1771352951, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:54,714 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:54,732 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,764 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:54,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,812 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:54,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-28 12:03:54,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:03:54,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:03:54,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:03:54,814 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2018-03-28 12:03:54,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:54,865 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-03-28 12:03:54,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:03:54,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-03-28 12:03:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:54,868 INFO L225 Difference]: With dead ends: 97 [2018-03-28 12:03:54,868 INFO L226 Difference]: Without dead ends: 70 [2018-03-28 12:03:54,869 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:03:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-03-28 12:03:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2018-03-28 12:03:54,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-03-28 12:03:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-03-28 12:03:54,877 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 24 [2018-03-28 12:03:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:54,877 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-03-28 12:03:54,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:03:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-03-28 12:03:54,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:03:54,878 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:54,879 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] [2018-03-28 12:03:54,879 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:54,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1733277010, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:54,887 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:54,904 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:54,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:03:54,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:54,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:03:54,931 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:03:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,940 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:54,976 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:54,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:03:54,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:03:54,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:03:54,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:03:54,977 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 4 states. [2018-03-28 12:03:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:55,012 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-03-28 12:03:55,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:03:55,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-03-28 12:03:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:55,014 INFO L225 Difference]: With dead ends: 60 [2018-03-28 12:03:55,014 INFO L226 Difference]: Without dead ends: 56 [2018-03-28 12:03:55,015 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:03:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-03-28 12:03:55,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-03-28 12:03:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-03-28 12:03:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-03-28 12:03:55,021 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 24 [2018-03-28 12:03:55,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:55,022 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-03-28 12:03:55,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:03:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-03-28 12:03:55,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-28 12:03:55,023 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:55,023 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] [2018-03-28 12:03:55,023 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:55,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1733277009, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:55,032 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:55,049 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:55,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:03:55,068 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:55,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:03:55,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-28 12:03:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:55,202 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:55,394 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:55,394 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-28 12:03:55,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:03:55,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:03:55,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:03:55,395 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 9 states. [2018-03-28 12:03:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:55,577 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-03-28 12:03:55,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-28 12:03:55,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-03-28 12:03:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:55,578 INFO L225 Difference]: With dead ends: 65 [2018-03-28 12:03:55,579 INFO L226 Difference]: Without dead ends: 64 [2018-03-28 12:03:55,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-03-28 12:03:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-28 12:03:55,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-03-28 12:03:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-28 12:03:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2018-03-28 12:03:55,587 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 24 [2018-03-28 12:03:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:55,588 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2018-03-28 12:03:55,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:03:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2018-03-28 12:03:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-28 12:03:55,589 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:55,590 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] [2018-03-28 12:03:55,590 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 281608856, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:55,607 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:55,620 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:55,680 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:55,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-03-28 12:03:55,718 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:55,732 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 19 treesize of output 15 [2018-03-28 12:03:55,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:55,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:03:55,736 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:11 [2018-03-28 12:03:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:55,767 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:55,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-03-28 12:03:55,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:03:55,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:03:55,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:03:55,768 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 9 states. [2018-03-28 12:03:55,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:55,935 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2018-03-28 12:03:55,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:03:55,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-03-28 12:03:55,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:55,936 INFO L225 Difference]: With dead ends: 86 [2018-03-28 12:03:55,937 INFO L226 Difference]: Without dead ends: 83 [2018-03-28 12:03:55,937 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:03:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-28 12:03:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2018-03-28 12:03:55,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-28 12:03:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-03-28 12:03:55,947 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 34 [2018-03-28 12:03:55,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:55,947 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-03-28 12:03:55,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:03:55,948 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-03-28 12:03:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-28 12:03:55,949 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:55,949 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:55,949 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:55,949 INFO L82 PathProgramCache]: Analyzing trace with hash 319684798, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:55,959 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:55,974 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:55,978 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 [2018-03-28 12:03:55,979 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:55,982 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:03:55,983 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-28 12:03:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:56,097 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:56,264 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:56,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-03-28 12:03:56,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-03-28 12:03:56,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-03-28 12:03:56,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-03-28 12:03:56,266 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 14 states. [2018-03-28 12:03:56,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:56,752 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-03-28 12:03:56,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 12:03:56,752 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2018-03-28 12:03:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:56,754 INFO L225 Difference]: With dead ends: 67 [2018-03-28 12:03:56,754 INFO L226 Difference]: Without dead ends: 66 [2018-03-28 12:03:56,754 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2018-03-28 12:03:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-03-28 12:03:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2018-03-28 12:03:56,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-03-28 12:03:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-03-28 12:03:56,763 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 34 [2018-03-28 12:03:56,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:56,764 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-03-28 12:03:56,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-03-28 12:03:56,764 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-03-28 12:03:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-28 12:03:56,765 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:56,765 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] [2018-03-28 12:03:56,765 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash 42247061, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:56,778 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:56,792 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:03:56,802 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:03:56,837 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:56,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-28 12:03:56,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 12:03:56,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 12:03:56,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:03:56,838 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 5 states. [2018-03-28 12:03:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:56,878 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2018-03-28 12:03:56,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 12:03:56,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-03-28 12:03:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:56,879 INFO L225 Difference]: With dead ends: 74 [2018-03-28 12:03:56,879 INFO L226 Difference]: Without dead ends: 69 [2018-03-28 12:03:56,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:03:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-03-28 12:03:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57. [2018-03-28 12:03:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-03-28 12:03:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-03-28 12:03:56,888 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 36 [2018-03-28 12:03:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:56,889 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-03-28 12:03:56,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 12:03:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-03-28 12:03:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-03-28 12:03:56,890 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:56,890 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:56,890 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:56,890 INFO L82 PathProgramCache]: Analyzing trace with hash -78003497, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:56,898 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:56,914 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:56,964 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:57,010 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:57,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-03-28 12:03:57,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:03:57,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:03:57,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:03:57,011 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 12 states. [2018-03-28 12:03:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:57,235 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2018-03-28 12:03:57,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-28 12:03:57,236 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-03-28 12:03:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:57,237 INFO L225 Difference]: With dead ends: 139 [2018-03-28 12:03:57,237 INFO L226 Difference]: Without dead ends: 116 [2018-03-28 12:03:57,238 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2018-03-28 12:03:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-03-28 12:03:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-03-28 12:03:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-28 12:03:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2018-03-28 12:03:57,254 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 43 [2018-03-28 12:03:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:57,255 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2018-03-28 12:03:57,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:03:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2018-03-28 12:03:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-03-28 12:03:57,256 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:57,256 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:57,256 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:57,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1947840492, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:57,265 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:57,284 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:57,304 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |main_#t~malloc3.base|)) (= |c_#valid| (store |c_old(#valid)| |main_#t~malloc3.base| 0)))) is different from true [2018-03-28 12:03:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-28 12:03:57,308 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:57,332 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc3.base_17| Int)) (or (= (store |c_#valid| |v_main_#t~malloc3.base_17| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc3.base_17|))))) is different from false [2018-03-28 12:03:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-28 12:03:57,364 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:57,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 12:03:57,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:03:57,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:03:57,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-03-28 12:03:57,365 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 7 states. [2018-03-28 12:03:57,383 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc3.base_17| Int)) (or (= (store |c_#valid| |v_main_#t~malloc3.base_17| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc3.base_17|)))))) is different from false [2018-03-28 12:03:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:57,450 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2018-03-28 12:03:57,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:03:57,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-03-28 12:03:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:57,452 INFO L225 Difference]: With dead ends: 126 [2018-03-28 12:03:57,452 INFO L226 Difference]: Without dead ends: 103 [2018-03-28 12:03:57,452 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=28, Unknown=4, NotChecked=36, Total=90 [2018-03-28 12:03:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-03-28 12:03:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-03-28 12:03:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-28 12:03:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2018-03-28 12:03:57,466 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 45 [2018-03-28 12:03:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:57,466 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2018-03-28 12:03:57,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:03:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2018-03-28 12:03:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-28 12:03:57,468 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:57,468 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:57,469 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:57,469 INFO L82 PathProgramCache]: Analyzing trace with hash 794928471, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:57,476 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:57,491 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:57,511 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |main_#t~malloc3.base|)) (= |c_#valid| (store |c_old(#valid)| |main_#t~malloc3.base| 0)))) is different from true [2018-03-28 12:03:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-28 12:03:57,524 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:57,540 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc3.base_19| Int)) (or (= (store |c_#valid| |v_main_#t~malloc3.base_19| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc3.base_19|))))) is different from false [2018-03-28 12:03:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-28 12:03:57,571 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:03:57,572 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 12:03:57,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:03:57,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:03:57,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-03-28 12:03:57,572 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand 7 states. [2018-03-28 12:03:57,578 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc3.base_19| Int)) (or (= (store |c_#valid| |v_main_#t~malloc3.base_19| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc3.base_19|)))))) is different from false [2018-03-28 12:03:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:57,631 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2018-03-28 12:03:57,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:03:57,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-03-28 12:03:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:57,631 INFO L225 Difference]: With dead ends: 103 [2018-03-28 12:03:57,632 INFO L226 Difference]: Without dead ends: 62 [2018-03-28 12:03:57,632 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=28, Unknown=4, NotChecked=36, Total=90 [2018-03-28 12:03:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-03-28 12:03:57,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-03-28 12:03:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-28 12:03:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-03-28 12:03:57,637 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 46 [2018-03-28 12:03:57,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:57,638 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-03-28 12:03:57,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:03:57,638 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-03-28 12:03:57,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-28 12:03:57,639 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:57,639 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-03-28 12:03:57,640 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:57,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1027613592, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:57,648 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:57,665 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:57,769 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:57,820 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 17 treesize of output 15 [2018-03-28 12:03:57,821 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:57,827 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 19 treesize of output 15 [2018-03-28 12:03:57,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:57,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:03:57,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:03:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:57,942 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:57,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-03-28 12:03:57,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-28 12:03:57,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-28 12:03:57,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2018-03-28 12:03:57,943 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 20 states. [2018-03-28 12:03:58,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:58,260 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2018-03-28 12:03:58,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-28 12:03:58,260 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-03-28 12:03:58,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:58,261 INFO L225 Difference]: With dead ends: 98 [2018-03-28 12:03:58,261 INFO L226 Difference]: Without dead ends: 97 [2018-03-28 12:03:58,262 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2018-03-28 12:03:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-03-28 12:03:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 77. [2018-03-28 12:03:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-03-28 12:03:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-03-28 12:03:58,271 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 53 [2018-03-28 12:03:58,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:58,271 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-03-28 12:03:58,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-28 12:03:58,272 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-03-28 12:03:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-28 12:03:58,272 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:58,273 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:58,273 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:58,273 INFO L82 PathProgramCache]: Analyzing trace with hash -625806585, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:58,279 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:58,294 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:58,359 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:58,444 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:58,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2018-03-28 12:03:58,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-28 12:03:58,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-28 12:03:58,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-03-28 12:03:58,445 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 18 states. [2018-03-28 12:03:58,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:58,685 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2018-03-28 12:03:58,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:03:58,685 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 62 [2018-03-28 12:03:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:58,685 INFO L225 Difference]: With dead ends: 147 [2018-03-28 12:03:58,686 INFO L226 Difference]: Without dead ends: 96 [2018-03-28 12:03:58,686 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2018-03-28 12:03:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-03-28 12:03:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2018-03-28 12:03:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-03-28 12:03:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-03-28 12:03:58,693 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 62 [2018-03-28 12:03:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:58,694 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-03-28 12:03:58,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-28 12:03:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-03-28 12:03:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-03-28 12:03:58,695 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:58,695 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2018-03-28 12:03:58,695 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:58,695 INFO L82 PathProgramCache]: Analyzing trace with hash 505849302, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:58,704 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:58,724 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:58,894 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:58,969 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 17 treesize of output 15 [2018-03-28 12:03:58,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:58,976 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 19 treesize of output 15 [2018-03-28 12:03:58,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:03:58,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:03:58,979 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:03:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:59,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:59,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-03-28 12:03:59,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-28 12:03:59,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-28 12:03:59,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-03-28 12:03:59,177 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 28 states. [2018-03-28 12:03:59,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:03:59,719 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-03-28 12:03:59,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 12:03:59,719 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 72 [2018-03-28 12:03:59,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:03:59,720 INFO L225 Difference]: With dead ends: 124 [2018-03-28 12:03:59,720 INFO L226 Difference]: Without dead ends: 123 [2018-03-28 12:03:59,721 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2018-03-28 12:03:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-03-28 12:03:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 103. [2018-03-28 12:03:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-28 12:03:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2018-03-28 12:03:59,730 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 72 [2018-03-28 12:03:59,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:03:59,731 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2018-03-28 12:03:59,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-28 12:03:59,731 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2018-03-28 12:03:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-03-28 12:03:59,731 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:03:59,731 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:03:59,732 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:03:59,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1821579943, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:03:59,739 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:03:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:03:59,759 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:03:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 39 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:59,865 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:03:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 39 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:03:59,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:03:59,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2018-03-28 12:03:59,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-03-28 12:03:59,975 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-03-28 12:03:59,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2018-03-28 12:03:59,976 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand 24 states. [2018-03-28 12:04:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:00,266 INFO L93 Difference]: Finished difference Result 188 states and 202 transitions. [2018-03-28 12:04:00,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-28 12:04:00,266 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 81 [2018-03-28 12:04:00,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:00,267 INFO L225 Difference]: With dead ends: 188 [2018-03-28 12:04:00,267 INFO L226 Difference]: Without dead ends: 122 [2018-03-28 12:04:00,268 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 131 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1327, Unknown=0, NotChecked=0, Total=1640 [2018-03-28 12:04:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-03-28 12:04:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114. [2018-03-28 12:04:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-03-28 12:04:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2018-03-28 12:04:00,276 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 81 [2018-03-28 12:04:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:00,276 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2018-03-28 12:04:00,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-03-28 12:04:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2018-03-28 12:04:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-03-28 12:04:00,277 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:00,277 INFO L355 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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] [2018-03-28 12:04:00,277 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:00,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1878767062, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:00,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:00,315 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 51 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:00,602 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:00,723 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 19 treesize of output 15 [2018-03-28 12:04:00,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:00,729 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 17 treesize of output 15 [2018-03-28 12:04:00,730 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:00,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:00,732 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 51 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:01,049 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:01,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-03-28 12:04:01,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-03-28 12:04:01,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-03-28 12:04:01,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2018-03-28 12:04:01,050 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand 36 states. [2018-03-28 12:04:01,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:01,934 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2018-03-28 12:04:01,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-28 12:04:01,934 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 91 [2018-03-28 12:04:01,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:01,935 INFO L225 Difference]: With dead ends: 150 [2018-03-28 12:04:01,935 INFO L226 Difference]: Without dead ends: 149 [2018-03-28 12:04:01,937 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=727, Invalid=2813, Unknown=0, NotChecked=0, Total=3540 [2018-03-28 12:04:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-03-28 12:04:01,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2018-03-28 12:04:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-03-28 12:04:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 138 transitions. [2018-03-28 12:04:01,952 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 138 transitions. Word has length 91 [2018-03-28 12:04:01,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:01,952 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 138 transitions. [2018-03-28 12:04:01,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-03-28 12:04:01,952 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 138 transitions. [2018-03-28 12:04:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-03-28 12:04:01,953 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:01,954 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:01,954 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:01,954 INFO L82 PathProgramCache]: Analyzing trace with hash 515956613, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:01,960 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:01,992 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:02,140 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:02,292 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:02,292 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 30 [2018-03-28 12:04:02,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-03-28 12:04:02,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-03-28 12:04:02,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2018-03-28 12:04:02,293 INFO L87 Difference]: Start difference. First operand 129 states and 138 transitions. Second operand 30 states. [2018-03-28 12:04:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:02,731 INFO L93 Difference]: Finished difference Result 229 states and 246 transitions. [2018-03-28 12:04:02,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-28 12:04:02,732 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 100 [2018-03-28 12:04:02,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:02,733 INFO L225 Difference]: With dead ends: 229 [2018-03-28 12:04:02,733 INFO L226 Difference]: Without dead ends: 148 [2018-03-28 12:04:02,735 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 161 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=476, Invalid=2176, Unknown=0, NotChecked=0, Total=2652 [2018-03-28 12:04:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-28 12:04:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2018-03-28 12:04:02,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-03-28 12:04:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2018-03-28 12:04:02,750 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 100 [2018-03-28 12:04:02,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:02,750 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2018-03-28 12:04:02,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-03-28 12:04:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2018-03-28 12:04:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-03-28 12:04:02,752 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:02,752 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:02,752 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:02,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1738997524, now seen corresponding path program 8 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 [2018-03-28 12:04:02,762 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:02,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:03,149 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:03,334 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 19 treesize of output 15 [2018-03-28 12:04:03,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:03,341 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 17 treesize of output 15 [2018-03-28 12:04:03,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:03,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:03,346 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:03,743 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:03,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-03-28 12:04:03,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-03-28 12:04:03,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-03-28 12:04:03,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1656, Unknown=0, NotChecked=0, Total=1892 [2018-03-28 12:04:03,744 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 44 states. [2018-03-28 12:04:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:04,767 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2018-03-28 12:04:04,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-03-28 12:04:04,767 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 110 [2018-03-28 12:04:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:04,768 INFO L225 Difference]: With dead ends: 176 [2018-03-28 12:04:04,768 INFO L226 Difference]: Without dead ends: 175 [2018-03-28 12:04:04,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1030, Invalid=4372, Unknown=0, NotChecked=0, Total=5402 [2018-03-28 12:04:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-03-28 12:04:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 155. [2018-03-28 12:04:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-03-28 12:04:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 166 transitions. [2018-03-28 12:04:04,781 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 166 transitions. Word has length 110 [2018-03-28 12:04:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:04,781 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 166 transitions. [2018-03-28 12:04:04,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-03-28 12:04:04,782 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 166 transitions. [2018-03-28 12:04:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-03-28 12:04:04,782 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:04,782 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:04,783 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1408626213, now seen corresponding path program 9 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 [2018-03-28 12:04:04,789 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:04,814 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:04,991 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:05,246 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:05,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2018-03-28 12:04:05,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-03-28 12:04:05,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-03-28 12:04:05,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2018-03-28 12:04:05,247 INFO L87 Difference]: Start difference. First operand 155 states and 166 transitions. Second operand 36 states. [2018-03-28 12:04:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:05,780 INFO L93 Difference]: Finished difference Result 270 states and 290 transitions. [2018-03-28 12:04:05,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-28 12:04:05,780 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 119 [2018-03-28 12:04:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:05,781 INFO L225 Difference]: With dead ends: 270 [2018-03-28 12:04:05,781 INFO L226 Difference]: Without dead ends: 174 [2018-03-28 12:04:05,783 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 191 SyntacticMatches, 12 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=672, Invalid=3234, Unknown=0, NotChecked=0, Total=3906 [2018-03-28 12:04:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-03-28 12:04:05,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2018-03-28 12:04:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-03-28 12:04:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 178 transitions. [2018-03-28 12:04:05,803 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 178 transitions. Word has length 119 [2018-03-28 12:04:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:05,803 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 178 transitions. [2018-03-28 12:04:05,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-03-28 12:04:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 178 transitions. [2018-03-28 12:04:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-03-28 12:04:05,805 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:05,805 INFO L355 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:05,805 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:05,806 INFO L82 PathProgramCache]: Analyzing trace with hash -104836628, now seen corresponding path program 10 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 [2018-03-28 12:04:05,816 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:05,850 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 135 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:06,282 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:06,521 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 19 treesize of output 15 [2018-03-28 12:04:06,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:06,526 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 17 treesize of output 15 [2018-03-28 12:04:06,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:06,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:06,529 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 135 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:07,083 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:07,083 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-03-28 12:04:07,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-03-28 12:04:07,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-03-28 12:04:07,084 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=2346, Unknown=0, NotChecked=0, Total=2652 [2018-03-28 12:04:07,084 INFO L87 Difference]: Start difference. First operand 166 states and 178 transitions. Second operand 52 states. [2018-03-28 12:04:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:08,472 INFO L93 Difference]: Finished difference Result 202 states and 217 transitions. [2018-03-28 12:04:08,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-03-28 12:04:08,472 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 129 [2018-03-28 12:04:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:08,474 INFO L225 Difference]: With dead ends: 202 [2018-03-28 12:04:08,474 INFO L226 Difference]: Without dead ends: 201 [2018-03-28 12:04:08,476 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1721 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1381, Invalid=6275, Unknown=0, NotChecked=0, Total=7656 [2018-03-28 12:04:08,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-03-28 12:04:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2018-03-28 12:04:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-28 12:04:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 194 transitions. [2018-03-28 12:04:08,500 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 194 transitions. Word has length 129 [2018-03-28 12:04:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:08,500 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 194 transitions. [2018-03-28 12:04:08,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-03-28 12:04:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 194 transitions. [2018-03-28 12:04:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-03-28 12:04:08,502 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:08,502 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:08,502 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:08,502 INFO L82 PathProgramCache]: Analyzing trace with hash 172257795, now seen corresponding path program 11 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 [2018-03-28 12:04:08,514 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:08,543 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 159 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:08,753 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 159 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:09,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:09,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 42 [2018-03-28 12:04:09,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-03-28 12:04:09,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-03-28 12:04:09,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2018-03-28 12:04:09,004 INFO L87 Difference]: Start difference. First operand 181 states and 194 transitions. Second operand 42 states. [2018-03-28 12:04:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:09,824 INFO L93 Difference]: Finished difference Result 311 states and 334 transitions. [2018-03-28 12:04:09,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-03-28 12:04:09,840 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 138 [2018-03-28 12:04:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:09,841 INFO L225 Difference]: With dead ends: 311 [2018-03-28 12:04:09,841 INFO L226 Difference]: Without dead ends: 200 [2018-03-28 12:04:09,842 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 221 SyntacticMatches, 14 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=901, Invalid=4501, Unknown=0, NotChecked=0, Total=5402 [2018-03-28 12:04:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-03-28 12:04:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2018-03-28 12:04:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-03-28 12:04:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 206 transitions. [2018-03-28 12:04:09,861 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 206 transitions. Word has length 138 [2018-03-28 12:04:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:09,862 INFO L459 AbstractCegarLoop]: Abstraction has 192 states and 206 transitions. [2018-03-28 12:04:09,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-03-28 12:04:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 206 transitions. [2018-03-28 12:04:09,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-03-28 12:04:09,863 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:09,863 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:09,863 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:09,864 INFO L82 PathProgramCache]: Analyzing trace with hash -601526702, now seen corresponding path program 12 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 [2018-03-28 12:04:09,869 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:09,898 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 192 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:10,331 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:10,619 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 17 treesize of output 15 [2018-03-28 12:04:10,619 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:10,624 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 19 treesize of output 15 [2018-03-28 12:04:10,625 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:10,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:10,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 192 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:11,284 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:11,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 59 [2018-03-28 12:04:11,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-03-28 12:04:11,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-03-28 12:04:11,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=3156, Unknown=0, NotChecked=0, Total=3540 [2018-03-28 12:04:11,285 INFO L87 Difference]: Start difference. First operand 192 states and 206 transitions. Second operand 60 states. [2018-03-28 12:04:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:13,043 INFO L93 Difference]: Finished difference Result 228 states and 245 transitions. [2018-03-28 12:04:13,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-28 12:04:13,043 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 148 [2018-03-28 12:04:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:13,044 INFO L225 Difference]: With dead ends: 228 [2018-03-28 12:04:13,044 INFO L226 Difference]: Without dead ends: 227 [2018-03-28 12:04:13,046 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2384 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1780, Invalid=8522, Unknown=0, NotChecked=0, Total=10302 [2018-03-28 12:04:13,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-03-28 12:04:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 207. [2018-03-28 12:04:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-03-28 12:04:13,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 222 transitions. [2018-03-28 12:04:13,063 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 222 transitions. Word has length 148 [2018-03-28 12:04:13,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:13,063 INFO L459 AbstractCegarLoop]: Abstraction has 207 states and 222 transitions. [2018-03-28 12:04:13,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-03-28 12:04:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 222 transitions. [2018-03-28 12:04:13,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-03-28 12:04:13,064 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:13,064 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:13,064 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:13,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1730275421, now seen corresponding path program 13 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 [2018-03-28 12:04:13,069 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:13,099 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 217 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:13,366 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 217 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:13,694 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:13,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 48 [2018-03-28 12:04:13,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-03-28 12:04:13,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-03-28 12:04:13,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1937, Unknown=0, NotChecked=0, Total=2256 [2018-03-28 12:04:13,695 INFO L87 Difference]: Start difference. First operand 207 states and 222 transitions. Second operand 48 states. [2018-03-28 12:04:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:14,562 INFO L93 Difference]: Finished difference Result 352 states and 378 transitions. [2018-03-28 12:04:14,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-03-28 12:04:14,565 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 157 [2018-03-28 12:04:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:14,566 INFO L225 Difference]: With dead ends: 352 [2018-03-28 12:04:14,566 INFO L226 Difference]: Without dead ends: 226 [2018-03-28 12:04:14,567 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 251 SyntacticMatches, 16 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1163, Invalid=5977, Unknown=0, NotChecked=0, Total=7140 [2018-03-28 12:04:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-03-28 12:04:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2018-03-28 12:04:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-03-28 12:04:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 234 transitions. [2018-03-28 12:04:14,585 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 234 transitions. Word has length 157 [2018-03-28 12:04:14,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:14,585 INFO L459 AbstractCegarLoop]: Abstraction has 218 states and 234 transitions. [2018-03-28 12:04:14,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-03-28 12:04:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 234 transitions. [2018-03-28 12:04:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-03-28 12:04:14,586 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:14,586 INFO L355 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:14,586 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:14,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1396216750, now seen corresponding path program 14 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 [2018-03-28 12:04:14,597 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:14,635 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 259 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:15,388 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:15,771 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 17 treesize of output 15 [2018-03-28 12:04:15,771 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:15,777 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 19 treesize of output 15 [2018-03-28 12:04:15,778 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:15,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:15,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 259 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:16,678 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:16,678 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 67 [2018-03-28 12:04:16,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-03-28 12:04:16,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-03-28 12:04:16,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=4086, Unknown=0, NotChecked=0, Total=4556 [2018-03-28 12:04:16,679 INFO L87 Difference]: Start difference. First operand 218 states and 234 transitions. Second operand 68 states. [2018-03-28 12:04:18,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:18,933 INFO L93 Difference]: Finished difference Result 254 states and 273 transitions. [2018-03-28 12:04:18,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-03-28 12:04:18,934 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 167 [2018-03-28 12:04:18,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:18,935 INFO L225 Difference]: With dead ends: 254 [2018-03-28 12:04:18,935 INFO L226 Difference]: Without dead ends: 253 [2018-03-28 12:04:18,937 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3155 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2227, Invalid=11113, Unknown=0, NotChecked=0, Total=13340 [2018-03-28 12:04:18,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-03-28 12:04:18,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2018-03-28 12:04:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-03-28 12:04:18,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2018-03-28 12:04:18,971 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 167 [2018-03-28 12:04:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:18,971 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2018-03-28 12:04:18,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-03-28 12:04:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2018-03-28 12:04:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-03-28 12:04:18,973 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:18,973 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:18,973 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:18,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1657992575, now seen corresponding path program 15 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:18,980 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:19,016 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:19,400 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:19,824 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:19,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 54 [2018-03-28 12:04:19,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-03-28 12:04:19,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-03-28 12:04:19,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=2467, Unknown=0, NotChecked=0, Total=2862 [2018-03-28 12:04:19,825 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 54 states. [2018-03-28 12:04:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:20,923 INFO L93 Difference]: Finished difference Result 393 states and 422 transitions. [2018-03-28 12:04:20,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-03-28 12:04:20,923 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 176 [2018-03-28 12:04:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:20,924 INFO L225 Difference]: With dead ends: 393 [2018-03-28 12:04:20,924 INFO L226 Difference]: Without dead ends: 252 [2018-03-28 12:04:20,925 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 281 SyntacticMatches, 18 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1458, Invalid=7662, Unknown=0, NotChecked=0, Total=9120 [2018-03-28 12:04:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-03-28 12:04:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2018-03-28 12:04:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-03-28 12:04:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 262 transitions. [2018-03-28 12:04:20,944 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 262 transitions. Word has length 176 [2018-03-28 12:04:20,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:20,944 INFO L459 AbstractCegarLoop]: Abstraction has 244 states and 262 transitions. [2018-03-28 12:04:20,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-03-28 12:04:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 262 transitions. [2018-03-28 12:04:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-03-28 12:04:20,945 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:20,945 INFO L355 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:20,946 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:20,946 INFO L82 PathProgramCache]: Analyzing trace with hash 29184912, now seen corresponding path program 16 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:20,959 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:21,000 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 336 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:21,798 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:22,255 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 17 treesize of output 15 [2018-03-28 12:04:22,255 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:22,261 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 19 treesize of output 15 [2018-03-28 12:04:22,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:22,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:22,264 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 336 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:23,323 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:23,323 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 75 [2018-03-28 12:04:23,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-03-28 12:04:23,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-03-28 12:04:23,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=5136, Unknown=0, NotChecked=0, Total=5700 [2018-03-28 12:04:23,325 INFO L87 Difference]: Start difference. First operand 244 states and 262 transitions. Second operand 76 states. [2018-03-28 12:04:25,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:25,706 INFO L93 Difference]: Finished difference Result 280 states and 301 transitions. [2018-03-28 12:04:25,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-03-28 12:04:25,741 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 186 [2018-03-28 12:04:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:25,742 INFO L225 Difference]: With dead ends: 280 [2018-03-28 12:04:25,743 INFO L226 Difference]: Without dead ends: 279 [2018-03-28 12:04:25,744 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4034 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2722, Invalid=14048, Unknown=0, NotChecked=0, Total=16770 [2018-03-28 12:04:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-03-28 12:04:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2018-03-28 12:04:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-03-28 12:04:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 278 transitions. [2018-03-28 12:04:25,791 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 278 transitions. Word has length 186 [2018-03-28 12:04:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:25,792 INFO L459 AbstractCegarLoop]: Abstraction has 259 states and 278 transitions. [2018-03-28 12:04:25,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-03-28 12:04:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 278 transitions. [2018-03-28 12:04:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-03-28 12:04:25,793 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:25,793 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:25,793 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:25,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2003110111, now seen corresponding path program 17 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:25,803 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:25,847 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 360 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:26,315 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 360 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:26,816 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:26,816 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 60 [2018-03-28 12:04:26,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-03-28 12:04:26,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-03-28 12:04:26,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=3061, Unknown=0, NotChecked=0, Total=3540 [2018-03-28 12:04:26,818 INFO L87 Difference]: Start difference. First operand 259 states and 278 transitions. Second operand 60 states. [2018-03-28 12:04:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:27,930 INFO L93 Difference]: Finished difference Result 434 states and 466 transitions. [2018-03-28 12:04:27,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-03-28 12:04:27,930 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 195 [2018-03-28 12:04:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:27,931 INFO L225 Difference]: With dead ends: 434 [2018-03-28 12:04:27,931 INFO L226 Difference]: Without dead ends: 278 [2018-03-28 12:04:27,932 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 311 SyntacticMatches, 20 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3041 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1786, Invalid=9556, Unknown=0, NotChecked=0, Total=11342 [2018-03-28 12:04:27,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-03-28 12:04:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2018-03-28 12:04:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-03-28 12:04:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 290 transitions. [2018-03-28 12:04:27,954 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 290 transitions. Word has length 195 [2018-03-28 12:04:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:27,954 INFO L459 AbstractCegarLoop]: Abstraction has 270 states and 290 transitions. [2018-03-28 12:04:27,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-03-28 12:04:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 290 transitions. [2018-03-28 12:04:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-03-28 12:04:27,955 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:27,955 INFO L355 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:27,956 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:27,956 INFO L82 PathProgramCache]: Analyzing trace with hash -512643216, now seen corresponding path program 18 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:27,961 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:28,000 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 423 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:28,798 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:29,386 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 17 treesize of output 15 [2018-03-28 12:04:29,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:29,391 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 19 treesize of output 15 [2018-03-28 12:04:29,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:29,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:29,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 423 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:30,558 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:30,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 83 [2018-03-28 12:04:30,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-03-28 12:04:30,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-03-28 12:04:30,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=6306, Unknown=0, NotChecked=0, Total=6972 [2018-03-28 12:04:30,560 INFO L87 Difference]: Start difference. First operand 270 states and 290 transitions. Second operand 84 states. [2018-03-28 12:04:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:33,599 INFO L93 Difference]: Finished difference Result 306 states and 329 transitions. [2018-03-28 12:04:33,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-03-28 12:04:33,599 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 205 [2018-03-28 12:04:33,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:33,600 INFO L225 Difference]: With dead ends: 306 [2018-03-28 12:04:33,600 INFO L226 Difference]: Without dead ends: 305 [2018-03-28 12:04:33,601 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5021 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3265, Invalid=17327, Unknown=0, NotChecked=0, Total=20592 [2018-03-28 12:04:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2018-03-28 12:04:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2018-03-28 12:04:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-03-28 12:04:33,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 306 transitions. [2018-03-28 12:04:33,644 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 306 transitions. Word has length 205 [2018-03-28 12:04:33,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:33,644 INFO L459 AbstractCegarLoop]: Abstraction has 285 states and 306 transitions. [2018-03-28 12:04:33,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-03-28 12:04:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 306 transitions. [2018-03-28 12:04:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-03-28 12:04:33,646 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:33,646 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:33,646 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash -576059137, now seen corresponding path program 19 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:33,655 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:33,703 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 445 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:34,197 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 445 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:34,765 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:34,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 66 [2018-03-28 12:04:34,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-03-28 12:04:34,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-03-28 12:04:34,766 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=3719, Unknown=0, NotChecked=0, Total=4290 [2018-03-28 12:04:34,767 INFO L87 Difference]: Start difference. First operand 285 states and 306 transitions. Second operand 66 states. [2018-03-28 12:04:36,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:36,176 INFO L93 Difference]: Finished difference Result 475 states and 510 transitions. [2018-03-28 12:04:36,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-03-28 12:04:36,176 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 214 [2018-03-28 12:04:36,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:36,178 INFO L225 Difference]: With dead ends: 475 [2018-03-28 12:04:36,179 INFO L226 Difference]: Without dead ends: 304 [2018-03-28 12:04:36,180 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 341 SyntacticMatches, 22 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3744 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2147, Invalid=11659, Unknown=0, NotChecked=0, Total=13806 [2018-03-28 12:04:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-03-28 12:04:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 296. [2018-03-28 12:04:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-03-28 12:04:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 318 transitions. [2018-03-28 12:04:36,217 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 318 transitions. Word has length 214 [2018-03-28 12:04:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:36,218 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 318 transitions. [2018-03-28 12:04:36,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-03-28 12:04:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 318 transitions. [2018-03-28 12:04:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-03-28 12:04:36,219 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:36,220 INFO L355 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:36,220 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1674186446, now seen corresponding path program 20 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:36,228 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:36,295 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 520 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:37,833 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:38,485 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 19 treesize of output 15 [2018-03-28 12:04:38,485 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:38,490 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 17 treesize of output 15 [2018-03-28 12:04:38,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:38,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:38,493 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 520 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:39,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:39,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 91 [2018-03-28 12:04:39,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-03-28 12:04:39,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-03-28 12:04:39,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=776, Invalid=7596, Unknown=0, NotChecked=0, Total=8372 [2018-03-28 12:04:39,881 INFO L87 Difference]: Start difference. First operand 296 states and 318 transitions. Second operand 92 states. [2018-03-28 12:04:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:43,338 INFO L93 Difference]: Finished difference Result 332 states and 357 transitions. [2018-03-28 12:04:43,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-03-28 12:04:43,385 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 224 [2018-03-28 12:04:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:43,387 INFO L225 Difference]: With dead ends: 332 [2018-03-28 12:04:43,387 INFO L226 Difference]: Without dead ends: 331 [2018-03-28 12:04:43,388 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3856, Invalid=20950, Unknown=0, NotChecked=0, Total=24806 [2018-03-28 12:04:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-03-28 12:04:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 311. [2018-03-28 12:04:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2018-03-28 12:04:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 334 transitions. [2018-03-28 12:04:43,415 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 334 transitions. Word has length 224 [2018-03-28 12:04:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:43,415 INFO L459 AbstractCegarLoop]: Abstraction has 311 states and 334 transitions. [2018-03-28 12:04:43,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-03-28 12:04:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 334 transitions. [2018-03-28 12:04:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-03-28 12:04:43,416 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:43,417 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:43,417 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:43,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1917064033, now seen corresponding path program 21 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:43,422 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:43,465 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 539 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:44,028 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 539 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:44,700 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:44,700 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 72 [2018-03-28 12:04:44,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-03-28 12:04:44,701 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-03-28 12:04:44,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=671, Invalid=4441, Unknown=0, NotChecked=0, Total=5112 [2018-03-28 12:04:44,701 INFO L87 Difference]: Start difference. First operand 311 states and 334 transitions. Second operand 72 states. [2018-03-28 12:04:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:46,252 INFO L93 Difference]: Finished difference Result 516 states and 554 transitions. [2018-03-28 12:04:46,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-03-28 12:04:46,252 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 233 [2018-03-28 12:04:46,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:46,254 INFO L225 Difference]: With dead ends: 516 [2018-03-28 12:04:46,254 INFO L226 Difference]: Without dead ends: 330 [2018-03-28 12:04:46,255 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 371 SyntacticMatches, 24 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4520 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2541, Invalid=13971, Unknown=0, NotChecked=0, Total=16512 [2018-03-28 12:04:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-03-28 12:04:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 322. [2018-03-28 12:04:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2018-03-28 12:04:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 346 transitions. [2018-03-28 12:04:46,297 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 346 transitions. Word has length 233 [2018-03-28 12:04:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:46,298 INFO L459 AbstractCegarLoop]: Abstraction has 322 states and 346 transitions. [2018-03-28 12:04:46,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-03-28 12:04:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 346 transitions. [2018-03-28 12:04:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-03-28 12:04:46,299 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:46,299 INFO L355 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:46,299 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:46,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1831879986, now seen corresponding path program 22 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:46,305 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:46,351 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 627 proven. 596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:47,502 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:48,246 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 17 treesize of output 15 [2018-03-28 12:04:48,247 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:48,252 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 19 treesize of output 15 [2018-03-28 12:04:48,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:04:48,254 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:04:48,254 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:04:49,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 627 proven. 596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:49,889 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:49,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 99 [2018-03-28 12:04:49,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-03-28 12:04:49,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-03-28 12:04:49,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=894, Invalid=9006, Unknown=0, NotChecked=0, Total=9900 [2018-03-28 12:04:49,890 INFO L87 Difference]: Start difference. First operand 322 states and 346 transitions. Second operand 100 states. [2018-03-28 12:04:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:54,206 INFO L93 Difference]: Finished difference Result 358 states and 385 transitions. [2018-03-28 12:04:54,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-03-28 12:04:54,241 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 243 [2018-03-28 12:04:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:54,243 INFO L225 Difference]: With dead ends: 358 [2018-03-28 12:04:54,243 INFO L226 Difference]: Without dead ends: 357 [2018-03-28 12:04:54,244 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7319 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4495, Invalid=24917, Unknown=0, NotChecked=0, Total=29412 [2018-03-28 12:04:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-03-28 12:04:54,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 337. [2018-03-28 12:04:54,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-03-28 12:04:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 362 transitions. [2018-03-28 12:04:54,286 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 362 transitions. Word has length 243 [2018-03-28 12:04:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:54,287 INFO L459 AbstractCegarLoop]: Abstraction has 337 states and 362 transitions. [2018-03-28 12:04:54,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-03-28 12:04:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 362 transitions. [2018-03-28 12:04:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-03-28 12:04:54,288 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:54,288 INFO L355 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:54,289 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:54,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2044015235, now seen corresponding path program 23 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:54,294 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:54,335 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 642 proven. 684 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:54,966 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:04:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 642 proven. 684 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:55,714 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:04:55,714 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 78 [2018-03-28 12:04:55,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-03-28 12:04:55,714 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-03-28 12:04:55,715 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=779, Invalid=5227, Unknown=0, NotChecked=0, Total=6006 [2018-03-28 12:04:55,715 INFO L87 Difference]: Start difference. First operand 337 states and 362 transitions. Second operand 78 states. [2018-03-28 12:04:57,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:04:57,447 INFO L93 Difference]: Finished difference Result 557 states and 598 transitions. [2018-03-28 12:04:57,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-03-28 12:04:57,447 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 252 [2018-03-28 12:04:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:04:57,448 INFO L225 Difference]: With dead ends: 557 [2018-03-28 12:04:57,448 INFO L226 Difference]: Without dead ends: 356 [2018-03-28 12:04:57,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 401 SyntacticMatches, 26 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5369 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2968, Invalid=16492, Unknown=0, NotChecked=0, Total=19460 [2018-03-28 12:04:57,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-03-28 12:04:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 348. [2018-03-28 12:04:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-03-28 12:04:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 374 transitions. [2018-03-28 12:04:57,484 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 374 transitions. Word has length 252 [2018-03-28 12:04:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:04:57,484 INFO L459 AbstractCegarLoop]: Abstraction has 348 states and 374 transitions. [2018-03-28 12:04:57,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-03-28 12:04:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 374 transitions. [2018-03-28 12:04:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-03-28 12:04:57,485 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:04:57,485 INFO L355 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:04:57,485 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:04:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash 15138828, now seen corresponding path program 24 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:04:57,499 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:04:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:04:57,553 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:04:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 744 proven. 704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:04:59,196 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:00,104 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 17 treesize of output 15 [2018-03-28 12:05:00,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:00,110 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 19 treesize of output 15 [2018-03-28 12:05:00,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:00,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:05:00,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:05:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 744 proven. 704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:02,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:02,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 107 [2018-03-28 12:05:02,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-03-28 12:05:02,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-03-28 12:05:02,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1020, Invalid=10536, Unknown=0, NotChecked=0, Total=11556 [2018-03-28 12:05:02,124 INFO L87 Difference]: Start difference. First operand 348 states and 374 transitions. Second operand 108 states. [2018-03-28 12:05:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:07,220 INFO L93 Difference]: Finished difference Result 384 states and 413 transitions. [2018-03-28 12:05:07,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-03-28 12:05:07,220 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 262 [2018-03-28 12:05:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:07,221 INFO L225 Difference]: With dead ends: 384 [2018-03-28 12:05:07,221 INFO L226 Difference]: Without dead ends: 383 [2018-03-28 12:05:07,222 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8630 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=5182, Invalid=29228, Unknown=0, NotChecked=0, Total=34410 [2018-03-28 12:05:07,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-03-28 12:05:07,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 363. [2018-03-28 12:05:07,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-03-28 12:05:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 390 transitions. [2018-03-28 12:05:07,280 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 390 transitions. Word has length 262 [2018-03-28 12:05:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:07,281 INFO L459 AbstractCegarLoop]: Abstraction has 363 states and 390 transitions. [2018-03-28 12:05:07,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-03-28 12:05:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 390 transitions. [2018-03-28 12:05:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-03-28 12:05:07,283 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:07,283 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:07,283 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:07,283 INFO L82 PathProgramCache]: Analyzing trace with hash 569354211, now seen corresponding path program 25 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:07,291 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:07,350 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:08,047 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:08,925 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:08,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 84 [2018-03-28 12:05:08,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-03-28 12:05:08,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-03-28 12:05:08,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=895, Invalid=6077, Unknown=0, NotChecked=0, Total=6972 [2018-03-28 12:05:08,926 INFO L87 Difference]: Start difference. First operand 363 states and 390 transitions. Second operand 84 states. [2018-03-28 12:05:10,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:10,948 INFO L93 Difference]: Finished difference Result 598 states and 642 transitions. [2018-03-28 12:05:10,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-03-28 12:05:10,948 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 271 [2018-03-28 12:05:10,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:10,949 INFO L225 Difference]: With dead ends: 598 [2018-03-28 12:05:10,950 INFO L226 Difference]: Without dead ends: 382 [2018-03-28 12:05:10,950 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 431 SyntacticMatches, 28 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6291 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3428, Invalid=19222, Unknown=0, NotChecked=0, Total=22650 [2018-03-28 12:05:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-03-28 12:05:10,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 374. [2018-03-28 12:05:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-03-28 12:05:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 402 transitions. [2018-03-28 12:05:11,000 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 402 transitions. Word has length 271 [2018-03-28 12:05:11,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:11,000 INFO L459 AbstractCegarLoop]: Abstraction has 374 states and 402 transitions. [2018-03-28 12:05:11,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-03-28 12:05:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 402 transitions. [2018-03-28 12:05:11,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-03-28 12:05:11,002 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:11,003 INFO L355 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:11,003 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:11,003 INFO L82 PathProgramCache]: Analyzing trace with hash -721881868, now seen corresponding path program 26 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:11,009 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:11,064 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 871 proven. 821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:12,643 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:13,647 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 19 treesize of output 15 [2018-03-28 12:05:13,648 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:13,653 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 17 treesize of output 15 [2018-03-28 12:05:13,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:13,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:05:13,655 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:05:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 871 proven. 821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:15,938 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:15,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 115 [2018-03-28 12:05:15,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-03-28 12:05:15,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-03-28 12:05:15,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1154, Invalid=12186, Unknown=0, NotChecked=0, Total=13340 [2018-03-28 12:05:15,939 INFO L87 Difference]: Start difference. First operand 374 states and 402 transitions. Second operand 116 states. [2018-03-28 12:05:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:21,847 INFO L93 Difference]: Finished difference Result 410 states and 441 transitions. [2018-03-28 12:05:21,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-03-28 12:05:21,883 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 281 [2018-03-28 12:05:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:21,885 INFO L225 Difference]: With dead ends: 410 [2018-03-28 12:05:21,885 INFO L226 Difference]: Without dead ends: 409 [2018-03-28 12:05:21,886 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10049 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=5917, Invalid=33883, Unknown=0, NotChecked=0, Total=39800 [2018-03-28 12:05:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-03-28 12:05:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 389. [2018-03-28 12:05:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-03-28 12:05:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 418 transitions. [2018-03-28 12:05:21,925 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 418 transitions. Word has length 281 [2018-03-28 12:05:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:21,925 INFO L459 AbstractCegarLoop]: Abstraction has 389 states and 418 transitions. [2018-03-28 12:05:21,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-03-28 12:05:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 418 transitions. [2018-03-28 12:05:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-03-28 12:05:21,926 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:21,926 INFO L355 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:21,926 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:21,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1285638149, now seen corresponding path program 27 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:21,933 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:21,987 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 875 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:22,799 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 875 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:23,814 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:23,814 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 90 [2018-03-28 12:05:23,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-03-28 12:05:23,815 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-03-28 12:05:23,815 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=6991, Unknown=0, NotChecked=0, Total=8010 [2018-03-28 12:05:23,815 INFO L87 Difference]: Start difference. First operand 389 states and 418 transitions. Second operand 90 states. [2018-03-28 12:05:26,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:26,109 INFO L93 Difference]: Finished difference Result 639 states and 686 transitions. [2018-03-28 12:05:26,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-03-28 12:05:26,109 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 290 [2018-03-28 12:05:26,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:26,111 INFO L225 Difference]: With dead ends: 639 [2018-03-28 12:05:26,111 INFO L226 Difference]: Without dead ends: 408 [2018-03-28 12:05:26,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 461 SyntacticMatches, 30 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7286 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3921, Invalid=22161, Unknown=0, NotChecked=0, Total=26082 [2018-03-28 12:05:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2018-03-28 12:05:26,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2018-03-28 12:05:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-03-28 12:05:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 430 transitions. [2018-03-28 12:05:26,158 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 430 transitions. Word has length 290 [2018-03-28 12:05:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:26,158 INFO L459 AbstractCegarLoop]: Abstraction has 400 states and 430 transitions. [2018-03-28 12:05:26,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-03-28 12:05:26,158 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 430 transitions. [2018-03-28 12:05:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-03-28 12:05:26,160 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:26,160 INFO L355 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:26,160 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:26,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1192261814, now seen corresponding path program 28 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:26,169 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:26,226 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1008 proven. 947 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:27,802 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:28,972 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 19 treesize of output 15 [2018-03-28 12:05:28,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:28,977 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 17 treesize of output 15 [2018-03-28 12:05:28,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:28,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:05:28,980 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:05:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1008 proven. 947 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:31,495 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:31,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 123 [2018-03-28 12:05:31,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-03-28 12:05:31,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-03-28 12:05:31,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1296, Invalid=13956, Unknown=0, NotChecked=0, Total=15252 [2018-03-28 12:05:31,497 INFO L87 Difference]: Start difference. First operand 400 states and 430 transitions. Second operand 124 states. [2018-03-28 12:05:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:38,087 INFO L93 Difference]: Finished difference Result 436 states and 469 transitions. [2018-03-28 12:05:38,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-28 12:05:38,087 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 300 [2018-03-28 12:05:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:38,088 INFO L225 Difference]: With dead ends: 436 [2018-03-28 12:05:38,088 INFO L226 Difference]: Without dead ends: 435 [2018-03-28 12:05:38,089 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11576 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=6700, Invalid=38882, Unknown=0, NotChecked=0, Total=45582 [2018-03-28 12:05:38,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2018-03-28 12:05:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 415. [2018-03-28 12:05:38,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-03-28 12:05:38,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 446 transitions. [2018-03-28 12:05:38,132 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 446 transitions. Word has length 300 [2018-03-28 12:05:38,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:38,132 INFO L459 AbstractCegarLoop]: Abstraction has 415 states and 446 transitions. [2018-03-28 12:05:38,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-03-28 12:05:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 446 transitions. [2018-03-28 12:05:38,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-03-28 12:05:38,134 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:38,134 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:38,134 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:38,135 INFO L82 PathProgramCache]: Analyzing trace with hash -682072475, now seen corresponding path program 29 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:38,141 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:38,209 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 1005 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:39,275 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 1005 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:40,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:40,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 96 [2018-03-28 12:05:40,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-03-28 12:05:40,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-03-28 12:05:40,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1151, Invalid=7969, Unknown=0, NotChecked=0, Total=9120 [2018-03-28 12:05:40,414 INFO L87 Difference]: Start difference. First operand 415 states and 446 transitions. Second operand 96 states. [2018-03-28 12:05:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:43,015 INFO L93 Difference]: Finished difference Result 680 states and 730 transitions. [2018-03-28 12:05:43,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-03-28 12:05:43,051 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 309 [2018-03-28 12:05:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:43,053 INFO L225 Difference]: With dead ends: 680 [2018-03-28 12:05:43,054 INFO L226 Difference]: Without dead ends: 434 [2018-03-28 12:05:43,056 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 491 SyntacticMatches, 32 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8354 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4447, Invalid=25309, Unknown=0, NotChecked=0, Total=29756 [2018-03-28 12:05:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-03-28 12:05:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2018-03-28 12:05:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-03-28 12:05:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 458 transitions. [2018-03-28 12:05:43,104 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 458 transitions. Word has length 309 [2018-03-28 12:05:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:43,104 INFO L459 AbstractCegarLoop]: Abstraction has 426 states and 458 transitions. [2018-03-28 12:05:43,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-03-28 12:05:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 458 transitions. [2018-03-28 12:05:43,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-03-28 12:05:43,106 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:43,106 INFO L355 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:43,106 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:43,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1626317130, now seen corresponding path program 30 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:43,112 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:43,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1155 proven. 1082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:44,940 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:46,226 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 19 treesize of output 15 [2018-03-28 12:05:46,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:46,231 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 17 treesize of output 15 [2018-03-28 12:05:46,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:05:46,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:05:46,234 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-28 12:05:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1155 proven. 1082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:49,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:49,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 131 [2018-03-28 12:05:49,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-03-28 12:05:49,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-03-28 12:05:49,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1446, Invalid=15846, Unknown=0, NotChecked=0, Total=17292 [2018-03-28 12:05:49,003 INFO L87 Difference]: Start difference. First operand 426 states and 458 transitions. Second operand 132 states. [2018-03-28 12:05:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:05:55,999 INFO L93 Difference]: Finished difference Result 462 states and 497 transitions. [2018-03-28 12:05:55,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-03-28 12:05:55,999 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 319 [2018-03-28 12:05:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:05:56,001 INFO L225 Difference]: With dead ends: 462 [2018-03-28 12:05:56,001 INFO L226 Difference]: Without dead ends: 461 [2018-03-28 12:05:56,002 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13211 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=7531, Invalid=44225, Unknown=0, NotChecked=0, Total=51756 [2018-03-28 12:05:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2018-03-28 12:05:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 441. [2018-03-28 12:05:56,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2018-03-28 12:05:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 474 transitions. [2018-03-28 12:05:56,050 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 474 transitions. Word has length 319 [2018-03-28 12:05:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:05:56,050 INFO L459 AbstractCegarLoop]: Abstraction has 441 states and 474 transitions. [2018-03-28 12:05:56,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-03-28 12:05:56,051 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 474 transitions. [2018-03-28 12:05:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-03-28 12:05:56,052 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:05:56,052 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:05:56,052 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-28 12:05:56,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1842009991, now seen corresponding path program 31 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:05:56,059 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:05:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:05:56,118 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:05:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2376 backedges. 1144 proven. 1232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:57,124 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:05:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2376 backedges. 1144 proven. 1232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:05:58,361 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:05:58,362 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 102 [2018-03-28 12:05:58,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-03-28 12:05:58,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-03-28 12:05:58,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1291, Invalid=9011, Unknown=0, NotChecked=0, Total=10302 [2018-03-28 12:05:58,363 INFO L87 Difference]: Start difference. First operand 441 states and 474 transitions. Second operand 102 states. Received shutdown request... [2018-03-28 12:06:00,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-03-28 12:06:00,775 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 12:06:00,779 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 12:06:00,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:06:00 BoogieIcfgContainer [2018-03-28 12:06:00,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 12:06:00,780 INFO L168 Benchmark]: Toolchain (without parser) took 127247.69 ms. Allocated memory was 309.3 MB in the beginning and 895.5 MB in the end (delta: 586.2 MB). Free memory was 246.4 MB in the beginning and 697.9 MB in the end (delta: -451.5 MB). Peak memory consumption was 134.7 MB. Max. memory is 5.3 GB. [2018-03-28 12:06:00,781 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 309.3 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 12:06:00,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.78 ms. Allocated memory is still 309.3 MB. Free memory was 246.4 MB in the beginning and 222.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-03-28 12:06:00,781 INFO L168 Benchmark]: Boogie Preprocessor took 51.43 ms. Allocated memory is still 309.3 MB. Free memory was 222.5 MB in the beginning and 220.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:06:00,782 INFO L168 Benchmark]: RCFGBuilder took 465.67 ms. Allocated memory was 309.3 MB in the beginning and 472.4 MB in the end (delta: 163.1 MB). Free memory was 220.5 MB in the beginning and 409.6 MB in the end (delta: -189.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. [2018-03-28 12:06:00,782 INFO L168 Benchmark]: TraceAbstraction took 126411.95 ms. Allocated memory was 472.4 MB in the beginning and 895.5 MB in the end (delta: 423.1 MB). Free memory was 409.6 MB in the beginning and 697.9 MB in the end (delta: -288.3 MB). Peak memory consumption was 134.8 MB. Max. memory is 5.3 GB. [2018-03-28 12:06:00,784 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 309.3 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 312.78 ms. Allocated memory is still 309.3 MB. Free memory was 246.4 MB in the beginning and 222.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 51.43 ms. Allocated memory is still 309.3 MB. Free memory was 222.5 MB in the beginning and 220.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 465.67 ms. Allocated memory was 309.3 MB in the beginning and 472.4 MB in the end (delta: 163.1 MB). Free memory was 220.5 MB in the beginning and 409.6 MB in the end (delta: -189.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 126411.95 ms. Allocated memory was 472.4 MB in the beginning and 895.5 MB in the end (delta: 423.1 MB). Free memory was 409.6 MB in the beginning and 697.9 MB in the end (delta: -288.3 MB). Peak memory consumption was 134.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 552). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 552). Cancelled while BasicCegarLoop was constructing difference of abstraction (441states) and interpolant automaton (currently 88 states, 102 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 171 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 74 locations, 9 error locations. TIMEOUT Result, 126.3s OverallTime, 40 OverallIterations, 17 TraceHistogramMax, 67.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4985 SDtfs, 30544 SDslu, 107883 SDs, 0 SdLazy, 62763 SolverSat, 2342 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13594 GetRequests, 9705 SyntacticMatches, 310 SemanticMatches, 3578 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 130947 ImplicationChecksByTransitivity, 85.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 39 MinimizatonAttempts, 477 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 6045 NumberOfCodeBlocks, 6045 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 12010 ConstructedInterpolants, 2473 QuantifiedInterpolants, 24120099 SizeOfPredicates, 1176 NumberOfNonLiveVariables, 11467 ConjunctsInSsa, 1494 ConjunctsInUnsatCore, 80 InterpolantComputations, 14 PerfectInterpolantSequences, 26230/52690 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_12-06-00-790.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_12-06-00-790.csv Completed graceful shutdown