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 0.1.23-1cf7e2d-m [2018-03-29 20:16:01,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:16:01,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:16:01,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-03-29 20:16:01,449 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-29 20:16:01,504 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:16:01,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:16:01,504 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:16:01,505 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:16:01,505 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:16:01,505 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:16:01,506 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:16:01,506 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:16:01,506 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:16:01,506 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:16:01,506 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:16:01,507 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:16:01,507 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:16:01,507 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:16:01,507 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:16:01,507 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:16:01,507 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:16:01,508 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:16:01,508 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:16:01,508 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:16:01,508 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:16:01,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:16:01,509 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:16:01,509 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:16:01,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:16:01,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:16:01,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:16:01,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:16:01,511 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:16:01,511 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:16:01,512 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:16:01,512 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:16:01,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:16:01,590 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:16:01,594 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:16:01,595 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:16:01,596 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:16:01,596 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 [2018-03-29 20:16:01,921 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG30b70ad70 [2018-03-29 20:16:02,081 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:16:02,081 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:16:02,081 INFO L168 CDTParser]: Scanning count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:16:02,091 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:16:02,091 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:16:02,091 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:16:02,092 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 [2018-03-29 20:16:02,092 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 [2018-03-29 20:16:02,092 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:16:02,092 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:16:02,092 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 [2018-03-29 20:16:02,092 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 [2018-03-29 20:16:02,092 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,093 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,094 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,095 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,096 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,097 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,098 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,099 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,100 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,101 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,102 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,103 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 [2018-03-29 20:16:02,104 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 [2018-03-29 20:16:02,119 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG30b70ad70 [2018-03-29 20:16:02,123 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:16:02,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:16:02,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:16:02,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:16:02,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:16:02,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db31dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02, skipping insertion in model container [2018-03-29 20:16:02,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,147 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:16:02,189 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:16:02,344 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:16:02,395 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:16:02,402 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-03-29 20:16:02,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02 WrapperNode [2018-03-29 20:16:02,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:16:02,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:16:02,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:16:02,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:16:02,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... [2018-03-29 20:16:02,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:16:02,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:16:02,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:16:02,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:16:02,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:16:02,622 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:16:02,623 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:16:02,623 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:16:02,623 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:16:02,623 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:16:02,623 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:16:02,623 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:16:02,623 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:16:02,623 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:16:02,624 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:16:02,625 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:16:02,626 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:16:02,627 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:16:02,628 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:16:02,629 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:16:02,630 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:16:02,631 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:16:02,632 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:16:02,633 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:16:02,634 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:16:02,635 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:16:02,636 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:16:02,637 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:16:02,950 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:16:02,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:16:02 BoogieIcfgContainer [2018-03-29 20:16:02,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:16:02,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:16:02,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:16:02,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:16:02,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:16:02" (1/3) ... [2018-03-29 20:16:02,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27682175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:16:02, skipping insertion in model container [2018-03-29 20:16:02,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:16:02" (2/3) ... [2018-03-29 20:16:02,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27682175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:16:02, skipping insertion in model container [2018-03-29 20:16:02,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:16:02" (3/3) ... [2018-03-29 20:16:02,957 INFO L107 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:16:02,964 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:16:02,972 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-29 20:16:03,016 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:16:03,017 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:16:03,017 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:16:03,017 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:16:03,017 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:16:03,017 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:16:03,017 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:16:03,017 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:16:03,017 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:16:03,018 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:16:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-03-29 20:16:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:16:03,034 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:03,035 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:16:03,035 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:03,038 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 [2018-03-29 20:16:03,050 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:03,083 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,120 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,179 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:03,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-29 20:16:03,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:16:03,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:16:03,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:16:03,194 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-03-29 20:16:03,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:03,262 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2018-03-29 20:16:03,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 20:16:03,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-29 20:16:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:03,272 INFO L225 Difference]: With dead ends: 94 [2018-03-29 20:16:03,272 INFO L226 Difference]: Without dead ends: 58 [2018-03-29 20:16:03,275 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:16:03,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-03-29 20:16:03,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-03-29 20:16:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-03-29 20:16:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-03-29 20:16:03,311 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 20 [2018-03-29 20:16:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:03,311 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-03-29 20:16:03,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:16:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-03-29 20:16:03,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-29 20:16:03,312 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:03,312 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] [2018-03-29 20:16:03,312 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:03,313 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 [2018-03-29 20:16:03,319 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:03,336 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,387 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,429 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:03,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-29 20:16:03,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 20:16:03,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 20:16:03,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:16:03,431 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2018-03-29 20:16:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:03,471 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-03-29 20:16:03,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 20:16:03,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-03-29 20:16:03,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:03,473 INFO L225 Difference]: With dead ends: 97 [2018-03-29 20:16:03,473 INFO L226 Difference]: Without dead ends: 70 [2018-03-29 20:16:03,474 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 [2018-03-29 20:16:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-03-29 20:16:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2018-03-29 20:16:03,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-03-29 20:16:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-03-29 20:16:03,480 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 24 [2018-03-29 20:16:03,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:03,480 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-03-29 20:16:03,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 20:16:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-03-29 20:16:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-29 20:16:03,481 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:03,481 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:16:03,481 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:03,482 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 [2018-03-29 20:16:03,487 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:03,507 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:03,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 20:16:03,536 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:03,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:16:03,545 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:16:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,553 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,581 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:03,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:16:03,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:16:03,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:16:03,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:16:03,582 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 4 states. [2018-03-29 20:16:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:03,637 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-03-29 20:16:03,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:16:03,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-03-29 20:16:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:03,639 INFO L225 Difference]: With dead ends: 60 [2018-03-29 20:16:03,639 INFO L226 Difference]: Without dead ends: 56 [2018-03-29 20:16:03,639 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 [2018-03-29 20:16:03,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-03-29 20:16:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-03-29 20:16:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-03-29 20:16:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-03-29 20:16:03,647 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 24 [2018-03-29 20:16:03,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:03,647 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-03-29 20:16:03,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:16:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-03-29 20:16:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-03-29 20:16:03,648 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:03,649 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] [2018-03-29 20:16:03,649 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:03,649 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 [2018-03-29 20:16:03,659 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:03,680 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:03,708 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 [2018-03-29 20:16:03,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:03,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:16:03,718 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 20:16:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:03,855 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:04,043 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:04,043 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 20:16:04,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:16:04,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:16:04,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:16:04,044 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 9 states. [2018-03-29 20:16:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:04,272 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-03-29 20:16:04,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 20:16:04,273 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-03-29 20:16:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:04,274 INFO L225 Difference]: With dead ends: 65 [2018-03-29 20:16:04,274 INFO L226 Difference]: Without dead ends: 64 [2018-03-29 20:16:04,274 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 [2018-03-29 20:16:04,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-29 20:16:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-03-29 20:16:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-29 20:16:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2018-03-29 20:16:04,283 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 24 [2018-03-29 20:16:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:04,283 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2018-03-29 20:16:04,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:16:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2018-03-29 20:16:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 20:16:04,285 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:04,285 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] [2018-03-29 20:16:04,285 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:04,285 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 [2018-03-29 20:16:04,302 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:04,319 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:04,386 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:04,421 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 [2018-03-29 20:16:04,421 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:04,432 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 [2018-03-29 20:16:04,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:04,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:04,439 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:11 [2018-03-29 20:16:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:04,482 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:04,483 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-03-29 20:16:04,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:16:04,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:16:04,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:16:04,484 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 9 states. [2018-03-29 20:16:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:04,641 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2018-03-29 20:16:04,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:16:04,641 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-03-29 20:16:04,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:04,643 INFO L225 Difference]: With dead ends: 86 [2018-03-29 20:16:04,643 INFO L226 Difference]: Without dead ends: 83 [2018-03-29 20:16:04,643 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 [2018-03-29 20:16:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-29 20:16:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2018-03-29 20:16:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-29 20:16:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-03-29 20:16:04,653 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 34 [2018-03-29 20:16:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:04,654 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-03-29 20:16:04,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:16:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-03-29 20:16:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 20:16:04,654 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:04,655 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] [2018-03-29 20:16:04,655 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:04,655 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 [2018-03-29 20:16:04,662 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:04,677 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:04,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-29 20:16:04,682 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:04,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:16:04,686 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-29 20:16:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:04,767 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:04,967 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:04,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-03-29 20:16:04,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-03-29 20:16:04,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-03-29 20:16:04,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-03-29 20:16:04,968 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 14 states. [2018-03-29 20:16:05,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:05,469 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-03-29 20:16:05,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-29 20:16:05,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2018-03-29 20:16:05,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:05,470 INFO L225 Difference]: With dead ends: 67 [2018-03-29 20:16:05,470 INFO L226 Difference]: Without dead ends: 66 [2018-03-29 20:16:05,470 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 [2018-03-29 20:16:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-03-29 20:16:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2018-03-29 20:16:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-03-29 20:16:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-03-29 20:16:05,478 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 34 [2018-03-29 20:16:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:05,479 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-03-29 20:16:05,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-03-29 20:16:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-03-29 20:16:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-29 20:16:05,480 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:05,480 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] [2018-03-29 20:16:05,480 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:05,480 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 [2018-03-29 20:16:05,493 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:05,508 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:16:05,560 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:16:05,610 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:05,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-29 20:16:05,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 20:16:05,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 20:16:05,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:16:05,612 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 5 states. [2018-03-29 20:16:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:05,663 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2018-03-29 20:16:05,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 20:16:05,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-03-29 20:16:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:05,665 INFO L225 Difference]: With dead ends: 74 [2018-03-29 20:16:05,665 INFO L226 Difference]: Without dead ends: 69 [2018-03-29 20:16:05,666 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 [2018-03-29 20:16:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-03-29 20:16:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57. [2018-03-29 20:16:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-03-29 20:16:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-03-29 20:16:05,675 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 36 [2018-03-29 20:16:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:05,676 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-03-29 20:16:05,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 20:16:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-03-29 20:16:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-03-29 20:16:05,677 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:05,677 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] [2018-03-29 20:16:05,677 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:05,678 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 [2018-03-29 20:16:05,689 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:05,706 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:05,748 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:05,805 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:05,805 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-03-29 20:16:05,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:16:05,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:16:05,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-03-29 20:16:05,805 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 12 states. [2018-03-29 20:16:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:06,005 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2018-03-29 20:16:06,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-29 20:16:06,005 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-03-29 20:16:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:06,006 INFO L225 Difference]: With dead ends: 139 [2018-03-29 20:16:06,006 INFO L226 Difference]: Without dead ends: 116 [2018-03-29 20:16:06,007 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 [2018-03-29 20:16:06,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-03-29 20:16:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2018-03-29 20:16:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-29 20:16:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2018-03-29 20:16:06,020 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 43 [2018-03-29 20:16:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:06,021 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2018-03-29 20:16:06,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:16:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2018-03-29 20:16:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-03-29 20:16:06,022 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:06,022 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] [2018-03-29 20:16:06,023 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:06,023 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 [2018-03-29 20:16:06,034 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:06,054 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:06,072 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 [2018-03-29 20:16:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-29 20:16:06,079 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:06,090 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 [2018-03-29 20:16:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-29 20:16:06,137 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:06,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-29 20:16:06,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:16:06,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:16:06,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-03-29 20:16:06,138 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 7 states. [2018-03-29 20:16:06,144 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 [2018-03-29 20:16:06,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:06,197 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2018-03-29 20:16:06,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:16:06,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-03-29 20:16:06,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:06,198 INFO L225 Difference]: With dead ends: 126 [2018-03-29 20:16:06,198 INFO L226 Difference]: Without dead ends: 103 [2018-03-29 20:16:06,199 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 [2018-03-29 20:16:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-03-29 20:16:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-03-29 20:16:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-29 20:16:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2018-03-29 20:16:06,210 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 45 [2018-03-29 20:16:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:06,210 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2018-03-29 20:16:06,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:16:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2018-03-29 20:16:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 20:16:06,212 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:06,212 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:16:06,212 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:06,212 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 [2018-03-29 20:16:06,222 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:06,237 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:06,255 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 [2018-03-29 20:16:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-29 20:16:06,259 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:06,272 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 [2018-03-29 20:16:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-03-29 20:16:06,319 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:16:06,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-29 20:16:06,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:16:06,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:16:06,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-03-29 20:16:06,320 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand 7 states. [2018-03-29 20:16:06,326 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 [2018-03-29 20:16:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:06,388 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2018-03-29 20:16:06,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:16:06,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-03-29 20:16:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:06,390 INFO L225 Difference]: With dead ends: 103 [2018-03-29 20:16:06,390 INFO L226 Difference]: Without dead ends: 62 [2018-03-29 20:16:06,390 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 [2018-03-29 20:16:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-03-29 20:16:06,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-03-29 20:16:06,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-29 20:16:06,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-03-29 20:16:06,397 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 46 [2018-03-29 20:16:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:06,398 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-03-29 20:16:06,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:16:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-03-29 20:16:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-29 20:16:06,399 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:06,399 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] [2018-03-29 20:16:06,399 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:06,399 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 [2018-03-29 20:16:06,413 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:06,434 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:06,613 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:06,673 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 [2018-03-29 20:16:06,673 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:06,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-03-29 20:16:06,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:06,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:06,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:06,795 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:06,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-03-29 20:16:06,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-29 20:16:06,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-29 20:16:06,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2018-03-29 20:16:06,796 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 20 states. [2018-03-29 20:16:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:07,095 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2018-03-29 20:16:07,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-29 20:16:07,095 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-03-29 20:16:07,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:07,096 INFO L225 Difference]: With dead ends: 98 [2018-03-29 20:16:07,096 INFO L226 Difference]: Without dead ends: 97 [2018-03-29 20:16:07,097 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:16:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-03-29 20:16:07,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 77. [2018-03-29 20:16:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-03-29 20:16:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-03-29 20:16:07,105 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 53 [2018-03-29 20:16:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:07,105 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-03-29 20:16:07,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-29 20:16:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-03-29 20:16:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-29 20:16:07,106 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:07,106 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] [2018-03-29 20:16:07,107 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:07,107 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 [2018-03-29 20:16:07,113 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:07,127 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:07,208 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:07,289 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:07,289 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2018-03-29 20:16:07,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 20:16:07,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 20:16:07,290 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-03-29 20:16:07,290 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 18 states. [2018-03-29 20:16:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:07,535 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2018-03-29 20:16:07,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-29 20:16:07,536 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 62 [2018-03-29 20:16:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:07,536 INFO L225 Difference]: With dead ends: 147 [2018-03-29 20:16:07,536 INFO L226 Difference]: Without dead ends: 96 [2018-03-29 20:16:07,537 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2018-03-29 20:16:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-03-29 20:16:07,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2018-03-29 20:16:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-03-29 20:16:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-03-29 20:16:07,549 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 62 [2018-03-29 20:16:07,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:07,549 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-03-29 20:16:07,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 20:16:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-03-29 20:16:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-03-29 20:16:07,550 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:07,550 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] [2018-03-29 20:16:07,550 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:07,551 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 [2018-03-29 20:16:07,566 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:07,592 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:07,739 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:07,830 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 [2018-03-29 20:16:07,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:07,837 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 [2018-03-29 20:16:07,838 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:07,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:07,841 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:08,020 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:08,020 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-03-29 20:16:08,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-29 20:16:08,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-29 20:16:08,021 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:16:08,021 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 28 states. [2018-03-29 20:16:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:08,582 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-03-29 20:16:08,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 20:16:08,582 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 72 [2018-03-29 20:16:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:08,583 INFO L225 Difference]: With dead ends: 124 [2018-03-29 20:16:08,583 INFO L226 Difference]: Without dead ends: 123 [2018-03-29 20:16:08,584 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2018-03-29 20:16:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-03-29 20:16:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 103. [2018-03-29 20:16:08,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-03-29 20:16:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2018-03-29 20:16:08,596 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 72 [2018-03-29 20:16:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:08,597 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2018-03-29 20:16:08,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-29 20:16:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2018-03-29 20:16:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-03-29 20:16:08,598 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:08,598 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] [2018-03-29 20:16:08,598 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:08,599 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 [2018-03-29 20:16:08,606 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:08,627 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 39 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:08,779 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 39 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:08,901 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:08,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2018-03-29 20:16:08,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-03-29 20:16:08,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-03-29 20:16:08,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2018-03-29 20:16:08,902 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand 24 states. [2018-03-29 20:16:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:09,194 INFO L93 Difference]: Finished difference Result 188 states and 202 transitions. [2018-03-29 20:16:09,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-29 20:16:09,194 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 81 [2018-03-29 20:16:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:09,195 INFO L225 Difference]: With dead ends: 188 [2018-03-29 20:16:09,195 INFO L226 Difference]: Without dead ends: 122 [2018-03-29 20:16:09,196 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 [2018-03-29 20:16:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-03-29 20:16:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114. [2018-03-29 20:16:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-03-29 20:16:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2018-03-29 20:16:09,205 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 81 [2018-03-29 20:16:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:09,206 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2018-03-29 20:16:09,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-03-29 20:16:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2018-03-29 20:16:09,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-03-29 20:16:09,206 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:09,207 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] [2018-03-29 20:16:09,207 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:09,207 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 [2018-03-29 20:16:09,213 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:09,233 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 51 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:09,452 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:09,566 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 [2018-03-29 20:16:09,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:09,572 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 [2018-03-29 20:16:09,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:09,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:09,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 51 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:09,883 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:09,883 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-03-29 20:16:09,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-03-29 20:16:09,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-03-29 20:16:09,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2018-03-29 20:16:09,884 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand 36 states. [2018-03-29 20:16:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:10,625 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2018-03-29 20:16:10,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-29 20:16:10,625 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 91 [2018-03-29 20:16:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:10,626 INFO L225 Difference]: With dead ends: 150 [2018-03-29 20:16:10,626 INFO L226 Difference]: Without dead ends: 149 [2018-03-29 20:16:10,627 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=727, Invalid=2813, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 20:16:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-03-29 20:16:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2018-03-29 20:16:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-03-29 20:16:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 138 transitions. [2018-03-29 20:16:10,638 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 138 transitions. Word has length 91 [2018-03-29 20:16:10,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:10,638 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 138 transitions. [2018-03-29 20:16:10,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-03-29 20:16:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 138 transitions. [2018-03-29 20:16:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-03-29 20:16:10,639 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:10,639 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] [2018-03-29 20:16:10,639 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:10,640 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 [2018-03-29 20:16:10,651 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:10,674 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:10,823 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:10,992 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:10,993 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 30 [2018-03-29 20:16:10,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-03-29 20:16:10,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-03-29 20:16:10,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2018-03-29 20:16:10,994 INFO L87 Difference]: Start difference. First operand 129 states and 138 transitions. Second operand 30 states. [2018-03-29 20:16:11,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:11,420 INFO L93 Difference]: Finished difference Result 229 states and 246 transitions. [2018-03-29 20:16:11,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-29 20:16:11,421 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 100 [2018-03-29 20:16:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:11,422 INFO L225 Difference]: With dead ends: 229 [2018-03-29 20:16:11,422 INFO L226 Difference]: Without dead ends: 148 [2018-03-29 20:16:11,423 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 [2018-03-29 20:16:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-29 20:16:11,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2018-03-29 20:16:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-03-29 20:16:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2018-03-29 20:16:11,434 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 100 [2018-03-29 20:16:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:11,435 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2018-03-29 20:16:11,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-03-29 20:16:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2018-03-29 20:16:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-03-29 20:16:11,436 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:11,436 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] [2018-03-29 20:16:11,436 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:11,436 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 [2018-03-29 20:16:11,446 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:11,472 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:11,824 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:12,020 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 [2018-03-29 20:16:12,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:12,026 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 [2018-03-29 20:16:12,027 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:12,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:12,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:12,424 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:12,425 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-03-29 20:16:12,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-03-29 20:16:12,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-03-29 20:16:12,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1656, Unknown=0, NotChecked=0, Total=1892 [2018-03-29 20:16:12,426 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 44 states. [2018-03-29 20:16:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:13,415 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2018-03-29 20:16:13,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-03-29 20:16:13,415 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 110 [2018-03-29 20:16:13,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:13,416 INFO L225 Difference]: With dead ends: 176 [2018-03-29 20:16:13,416 INFO L226 Difference]: Without dead ends: 175 [2018-03-29 20:16:13,417 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 [2018-03-29 20:16:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-03-29 20:16:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 155. [2018-03-29 20:16:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-03-29 20:16:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 166 transitions. [2018-03-29 20:16:13,433 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 166 transitions. Word has length 110 [2018-03-29 20:16:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:13,434 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 166 transitions. [2018-03-29 20:16:13,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-03-29 20:16:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 166 transitions. [2018-03-29 20:16:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-03-29 20:16:13,435 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:13,435 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] [2018-03-29 20:16:13,435 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:13,436 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 [2018-03-29 20:16:13,441 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:13,463 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:13,636 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:13,867 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:13,867 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2018-03-29 20:16:13,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-03-29 20:16:13,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-03-29 20:16:13,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2018-03-29 20:16:13,868 INFO L87 Difference]: Start difference. First operand 155 states and 166 transitions. Second operand 36 states. [2018-03-29 20:16:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:14,416 INFO L93 Difference]: Finished difference Result 270 states and 290 transitions. [2018-03-29 20:16:14,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-29 20:16:14,417 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 119 [2018-03-29 20:16:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:14,418 INFO L225 Difference]: With dead ends: 270 [2018-03-29 20:16:14,418 INFO L226 Difference]: Without dead ends: 174 [2018-03-29 20:16:14,420 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 [2018-03-29 20:16:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-03-29 20:16:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2018-03-29 20:16:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-03-29 20:16:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 178 transitions. [2018-03-29 20:16:14,438 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 178 transitions. Word has length 119 [2018-03-29 20:16:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:14,438 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 178 transitions. [2018-03-29 20:16:14,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-03-29 20:16:14,439 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 178 transitions. [2018-03-29 20:16:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-03-29 20:16:14,439 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:14,440 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] [2018-03-29 20:16:14,440 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:14,440 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 [2018-03-29 20:16:14,449 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:14,478 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 135 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:14,931 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:15,160 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 [2018-03-29 20:16:15,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:15,166 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 [2018-03-29 20:16:15,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:15,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:15,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 135 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:15,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:15,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-03-29 20:16:15,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-03-29 20:16:15,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-03-29 20:16:15,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=2346, Unknown=0, NotChecked=0, Total=2652 [2018-03-29 20:16:15,726 INFO L87 Difference]: Start difference. First operand 166 states and 178 transitions. Second operand 52 states. [2018-03-29 20:16:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:17,060 INFO L93 Difference]: Finished difference Result 202 states and 217 transitions. [2018-03-29 20:16:17,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-03-29 20:16:17,060 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 129 [2018-03-29 20:16:17,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:17,062 INFO L225 Difference]: With dead ends: 202 [2018-03-29 20:16:17,062 INFO L226 Difference]: Without dead ends: 201 [2018-03-29 20:16:17,065 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 [2018-03-29 20:16:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-03-29 20:16:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2018-03-29 20:16:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-29 20:16:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 194 transitions. [2018-03-29 20:16:17,092 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 194 transitions. Word has length 129 [2018-03-29 20:16:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:17,093 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 194 transitions. [2018-03-29 20:16:17,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-03-29 20:16:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 194 transitions. [2018-03-29 20:16:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-03-29 20:16:17,094 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:17,095 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] [2018-03-29 20:16:17,095 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:17,095 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 [2018-03-29 20:16:17,101 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:17,142 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 159 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:17,349 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 159 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:17,606 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:17,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 42 [2018-03-29 20:16:17,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-03-29 20:16:17,607 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-03-29 20:16:17,607 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2018-03-29 20:16:17,608 INFO L87 Difference]: Start difference. First operand 181 states and 194 transitions. Second operand 42 states. [2018-03-29 20:16:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:18,718 INFO L93 Difference]: Finished difference Result 311 states and 334 transitions. [2018-03-29 20:16:18,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-03-29 20:16:18,718 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 138 [2018-03-29 20:16:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:18,719 INFO L225 Difference]: With dead ends: 311 [2018-03-29 20:16:18,720 INFO L226 Difference]: Without dead ends: 200 [2018-03-29 20:16:18,722 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 221 SyntacticMatches, 14 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=901, Invalid=4501, Unknown=0, NotChecked=0, Total=5402 [2018-03-29 20:16:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-03-29 20:16:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2018-03-29 20:16:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-03-29 20:16:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 206 transitions. [2018-03-29 20:16:18,738 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 206 transitions. Word has length 138 [2018-03-29 20:16:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:18,738 INFO L459 AbstractCegarLoop]: Abstraction has 192 states and 206 transitions. [2018-03-29 20:16:18,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-03-29 20:16:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 206 transitions. [2018-03-29 20:16:18,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-03-29 20:16:18,739 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:18,739 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] [2018-03-29 20:16:18,740 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:18,740 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 [2018-03-29 20:16:18,745 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:18,774 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 192 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:19,234 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:19,533 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 [2018-03-29 20:16:19,534 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:19,539 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 [2018-03-29 20:16:19,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:19,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:19,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 192 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:20,209 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:20,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 59 [2018-03-29 20:16:20,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-03-29 20:16:20,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-03-29 20:16:20,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=3156, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 20:16:20,211 INFO L87 Difference]: Start difference. First operand 192 states and 206 transitions. Second operand 60 states. [2018-03-29 20:16:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:21,981 INFO L93 Difference]: Finished difference Result 228 states and 245 transitions. [2018-03-29 20:16:21,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 20:16:21,981 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 148 [2018-03-29 20:16:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:21,982 INFO L225 Difference]: With dead ends: 228 [2018-03-29 20:16:21,982 INFO L226 Difference]: Without dead ends: 227 [2018-03-29 20:16:21,984 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2384 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1780, Invalid=8522, Unknown=0, NotChecked=0, Total=10302 [2018-03-29 20:16:21,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-03-29 20:16:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 207. [2018-03-29 20:16:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-03-29 20:16:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 222 transitions. [2018-03-29 20:16:22,001 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 222 transitions. Word has length 148 [2018-03-29 20:16:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:22,002 INFO L459 AbstractCegarLoop]: Abstraction has 207 states and 222 transitions. [2018-03-29 20:16:22,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-03-29 20:16:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 222 transitions. [2018-03-29 20:16:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-03-29 20:16:22,002 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:22,002 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] [2018-03-29 20:16:22,002 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:22,003 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 [2018-03-29 20:16:22,008 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:22,037 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 217 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:22,324 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 217 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:22,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:22,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 48 [2018-03-29 20:16:22,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-03-29 20:16:22,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-03-29 20:16:22,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1937, Unknown=0, NotChecked=0, Total=2256 [2018-03-29 20:16:22,652 INFO L87 Difference]: Start difference. First operand 207 states and 222 transitions. Second operand 48 states. [2018-03-29 20:16:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:23,497 INFO L93 Difference]: Finished difference Result 352 states and 378 transitions. [2018-03-29 20:16:23,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-03-29 20:16:23,498 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 157 [2018-03-29 20:16:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:23,499 INFO L225 Difference]: With dead ends: 352 [2018-03-29 20:16:23,499 INFO L226 Difference]: Without dead ends: 226 [2018-03-29 20:16:23,500 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 251 SyntacticMatches, 16 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1163, Invalid=5977, Unknown=0, NotChecked=0, Total=7140 [2018-03-29 20:16:23,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-03-29 20:16:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2018-03-29 20:16:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-03-29 20:16:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 234 transitions. [2018-03-29 20:16:23,521 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 234 transitions. Word has length 157 [2018-03-29 20:16:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:23,522 INFO L459 AbstractCegarLoop]: Abstraction has 218 states and 234 transitions. [2018-03-29 20:16:23,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-03-29 20:16:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 234 transitions. [2018-03-29 20:16:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-03-29 20:16:23,523 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:23,523 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] [2018-03-29 20:16:23,523 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:23,524 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 [2018-03-29 20:16:23,533 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:23,570 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 259 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:24,136 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:24,555 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 [2018-03-29 20:16:24,556 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:24,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-29 20:16:24,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:24,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:24,579 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 259 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:25,465 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:25,465 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 67 [2018-03-29 20:16:25,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-03-29 20:16:25,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-03-29 20:16:25,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=4086, Unknown=0, NotChecked=0, Total=4556 [2018-03-29 20:16:25,466 INFO L87 Difference]: Start difference. First operand 218 states and 234 transitions. Second operand 68 states. [2018-03-29 20:16:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:27,756 INFO L93 Difference]: Finished difference Result 254 states and 273 transitions. [2018-03-29 20:16:27,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-03-29 20:16:27,756 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 167 [2018-03-29 20:16:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:27,758 INFO L225 Difference]: With dead ends: 254 [2018-03-29 20:16:27,758 INFO L226 Difference]: Without dead ends: 253 [2018-03-29 20:16:27,759 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3155 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2227, Invalid=11113, Unknown=0, NotChecked=0, Total=13340 [2018-03-29 20:16:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-03-29 20:16:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2018-03-29 20:16:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-03-29 20:16:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2018-03-29 20:16:27,793 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 167 [2018-03-29 20:16:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:27,794 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2018-03-29 20:16:27,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-03-29 20:16:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2018-03-29 20:16:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-03-29 20:16:27,795 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:27,795 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] [2018-03-29 20:16:27,795 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:27,796 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 [2018-03-29 20:16:27,805 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:27,854 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:28,490 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:28,885 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:28,886 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 54 [2018-03-29 20:16:28,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-03-29 20:16:28,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-03-29 20:16:28,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=2467, Unknown=0, NotChecked=0, Total=2862 [2018-03-29 20:16:28,887 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 54 states. [2018-03-29 20:16:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:29,992 INFO L93 Difference]: Finished difference Result 393 states and 422 transitions. [2018-03-29 20:16:29,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-03-29 20:16:29,992 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 176 [2018-03-29 20:16:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:29,994 INFO L225 Difference]: With dead ends: 393 [2018-03-29 20:16:29,994 INFO L226 Difference]: Without dead ends: 252 [2018-03-29 20:16:29,995 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 281 SyntacticMatches, 18 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1458, Invalid=7662, Unknown=0, NotChecked=0, Total=9120 [2018-03-29 20:16:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-03-29 20:16:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2018-03-29 20:16:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-03-29 20:16:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 262 transitions. [2018-03-29 20:16:30,032 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 262 transitions. Word has length 176 [2018-03-29 20:16:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:30,032 INFO L459 AbstractCegarLoop]: Abstraction has 244 states and 262 transitions. [2018-03-29 20:16:30,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-03-29 20:16:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 262 transitions. [2018-03-29 20:16:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-03-29 20:16:30,033 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:30,033 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] [2018-03-29 20:16:30,033 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:30,033 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 [2018-03-29 20:16:30,039 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:30,078 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 336 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:30,777 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:31,208 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 [2018-03-29 20:16:31,208 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:31,214 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 [2018-03-29 20:16:31,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:31,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:31,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 336 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:32,257 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:32,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 75 [2018-03-29 20:16:32,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-03-29 20:16:32,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-03-29 20:16:32,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=5136, Unknown=0, NotChecked=0, Total=5700 [2018-03-29 20:16:32,258 INFO L87 Difference]: Start difference. First operand 244 states and 262 transitions. Second operand 76 states. [2018-03-29 20:16:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:34,628 INFO L93 Difference]: Finished difference Result 280 states and 301 transitions. [2018-03-29 20:16:34,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-03-29 20:16:34,628 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 186 [2018-03-29 20:16:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:34,629 INFO L225 Difference]: With dead ends: 280 [2018-03-29 20:16:34,629 INFO L226 Difference]: Without dead ends: 279 [2018-03-29 20:16:34,631 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4034 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2722, Invalid=14048, Unknown=0, NotChecked=0, Total=16770 [2018-03-29 20:16:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-03-29 20:16:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2018-03-29 20:16:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-03-29 20:16:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 278 transitions. [2018-03-29 20:16:34,669 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 278 transitions. Word has length 186 [2018-03-29 20:16:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:34,669 INFO L459 AbstractCegarLoop]: Abstraction has 259 states and 278 transitions. [2018-03-29 20:16:34,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-03-29 20:16:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 278 transitions. [2018-03-29 20:16:34,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-03-29 20:16:34,671 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:34,671 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] [2018-03-29 20:16:34,671 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:34,671 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 [2018-03-29 20:16:34,680 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:34,716 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 360 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:35,102 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 360 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:35,574 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:35,574 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 60 [2018-03-29 20:16:35,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-03-29 20:16:35,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-03-29 20:16:35,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=3061, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 20:16:35,576 INFO L87 Difference]: Start difference. First operand 259 states and 278 transitions. Second operand 60 states. [2018-03-29 20:16:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:36,715 INFO L93 Difference]: Finished difference Result 434 states and 466 transitions. [2018-03-29 20:16:36,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-03-29 20:16:36,716 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 195 [2018-03-29 20:16:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:36,717 INFO L225 Difference]: With dead ends: 434 [2018-03-29 20:16:36,717 INFO L226 Difference]: Without dead ends: 278 [2018-03-29 20:16:36,718 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 311 SyntacticMatches, 20 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3041 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1786, Invalid=9556, Unknown=0, NotChecked=0, Total=11342 [2018-03-29 20:16:36,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-03-29 20:16:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2018-03-29 20:16:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-03-29 20:16:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 290 transitions. [2018-03-29 20:16:36,741 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 290 transitions. Word has length 195 [2018-03-29 20:16:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:36,741 INFO L459 AbstractCegarLoop]: Abstraction has 270 states and 290 transitions. [2018-03-29 20:16:36,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-03-29 20:16:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 290 transitions. [2018-03-29 20:16:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-03-29 20:16:36,743 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:36,743 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] [2018-03-29 20:16:36,743 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:36,743 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 [2018-03-29 20:16:36,751 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:36,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 423 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:37,623 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:38,219 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 [2018-03-29 20:16:38,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:38,270 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 [2018-03-29 20:16:38,271 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:38,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:38,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 423 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:39,478 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:39,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 83 [2018-03-29 20:16:39,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-03-29 20:16:39,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-03-29 20:16:39,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=6306, Unknown=0, NotChecked=0, Total=6972 [2018-03-29 20:16:39,482 INFO L87 Difference]: Start difference. First operand 270 states and 290 transitions. Second operand 84 states. [2018-03-29 20:16:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:42,427 INFO L93 Difference]: Finished difference Result 306 states and 329 transitions. [2018-03-29 20:16:42,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-03-29 20:16:42,428 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 205 [2018-03-29 20:16:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:42,430 INFO L225 Difference]: With dead ends: 306 [2018-03-29 20:16:42,430 INFO L226 Difference]: Without dead ends: 305 [2018-03-29 20:16:42,431 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5021 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3265, Invalid=17327, Unknown=0, NotChecked=0, Total=20592 [2018-03-29 20:16:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2018-03-29 20:16:42,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2018-03-29 20:16:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-03-29 20:16:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 306 transitions. [2018-03-29 20:16:42,477 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 306 transitions. Word has length 205 [2018-03-29 20:16:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:42,478 INFO L459 AbstractCegarLoop]: Abstraction has 285 states and 306 transitions. [2018-03-29 20:16:42,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-03-29 20:16:42,478 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 306 transitions. [2018-03-29 20:16:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-03-29 20:16:42,480 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:42,480 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] [2018-03-29 20:16:42,480 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:42,480 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 [2018-03-29 20:16:42,489 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:42,548 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 445 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:43,192 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 445 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:43,754 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:43,835 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 66 [2018-03-29 20:16:43,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-03-29 20:16:43,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-03-29 20:16:43,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=3719, Unknown=0, NotChecked=0, Total=4290 [2018-03-29 20:16:43,836 INFO L87 Difference]: Start difference. First operand 285 states and 306 transitions. Second operand 66 states. [2018-03-29 20:16:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:45,214 INFO L93 Difference]: Finished difference Result 475 states and 510 transitions. [2018-03-29 20:16:45,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-03-29 20:16:45,214 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 214 [2018-03-29 20:16:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:45,215 INFO L225 Difference]: With dead ends: 475 [2018-03-29 20:16:45,215 INFO L226 Difference]: Without dead ends: 304 [2018-03-29 20:16:45,216 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 341 SyntacticMatches, 22 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3744 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2147, Invalid=11659, Unknown=0, NotChecked=0, Total=13806 [2018-03-29 20:16:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-03-29 20:16:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 296. [2018-03-29 20:16:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-03-29 20:16:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 318 transitions. [2018-03-29 20:16:45,242 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 318 transitions. Word has length 214 [2018-03-29 20:16:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:45,242 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 318 transitions. [2018-03-29 20:16:45,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-03-29 20:16:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 318 transitions. [2018-03-29 20:16:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-03-29 20:16:45,244 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:45,244 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] [2018-03-29 20:16:45,244 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:45,244 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 [2018-03-29 20:16:45,253 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:45,305 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 520 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:46,533 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:47,161 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 [2018-03-29 20:16:47,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:47,166 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 [2018-03-29 20:16:47,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:47,169 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:47,169 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 520 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:48,608 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:48,608 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 91 [2018-03-29 20:16:48,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-03-29 20:16:48,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-03-29 20:16:48,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=776, Invalid=7596, Unknown=0, NotChecked=0, Total=8372 [2018-03-29 20:16:48,610 INFO L87 Difference]: Start difference. First operand 296 states and 318 transitions. Second operand 92 states. [2018-03-29 20:16:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:52,117 INFO L93 Difference]: Finished difference Result 332 states and 357 transitions. [2018-03-29 20:16:52,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-03-29 20:16:52,117 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 224 [2018-03-29 20:16:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:52,118 INFO L225 Difference]: With dead ends: 332 [2018-03-29 20:16:52,119 INFO L226 Difference]: Without dead ends: 331 [2018-03-29 20:16:52,120 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3856, Invalid=20950, Unknown=0, NotChecked=0, Total=24806 [2018-03-29 20:16:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-03-29 20:16:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 311. [2018-03-29 20:16:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2018-03-29 20:16:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 334 transitions. [2018-03-29 20:16:52,149 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 334 transitions. Word has length 224 [2018-03-29 20:16:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:52,149 INFO L459 AbstractCegarLoop]: Abstraction has 311 states and 334 transitions. [2018-03-29 20:16:52,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-03-29 20:16:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 334 transitions. [2018-03-29 20:16:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-03-29 20:16:52,150 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:52,150 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] [2018-03-29 20:16:52,150 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:52,151 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 [2018-03-29 20:16:52,159 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:52,197 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 539 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:52,748 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 539 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:53,383 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:53,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 72 [2018-03-29 20:16:53,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-03-29 20:16:53,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-03-29 20:16:53,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=671, Invalid=4441, Unknown=0, NotChecked=0, Total=5112 [2018-03-29 20:16:53,384 INFO L87 Difference]: Start difference. First operand 311 states and 334 transitions. Second operand 72 states. [2018-03-29 20:16:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:16:54,984 INFO L93 Difference]: Finished difference Result 516 states and 554 transitions. [2018-03-29 20:16:54,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-03-29 20:16:54,984 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 233 [2018-03-29 20:16:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:16:54,985 INFO L225 Difference]: With dead ends: 516 [2018-03-29 20:16:54,985 INFO L226 Difference]: Without dead ends: 330 [2018-03-29 20:16:54,986 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 371 SyntacticMatches, 24 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4520 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2541, Invalid=13971, Unknown=0, NotChecked=0, Total=16512 [2018-03-29 20:16:54,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-03-29 20:16:55,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 322. [2018-03-29 20:16:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2018-03-29 20:16:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 346 transitions. [2018-03-29 20:16:55,016 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 346 transitions. Word has length 233 [2018-03-29 20:16:55,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:16:55,016 INFO L459 AbstractCegarLoop]: Abstraction has 322 states and 346 transitions. [2018-03-29 20:16:55,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-03-29 20:16:55,016 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 346 transitions. [2018-03-29 20:16:55,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-03-29 20:16:55,017 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:16:55,017 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] [2018-03-29 20:16:55,017 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:16:55,018 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 [2018-03-29 20:16:55,025 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:16:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:16:55,068 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:16:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 627 proven. 596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:56,168 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:16:56,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-03-29 20:16:56,913 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:56,918 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 [2018-03-29 20:16:56,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:16:56,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:16:56,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:16:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 627 proven. 596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:16:58,610 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:16:58,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 99 [2018-03-29 20:16:58,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-03-29 20:16:58,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-03-29 20:16:58,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=894, Invalid=9006, Unknown=0, NotChecked=0, Total=9900 [2018-03-29 20:16:58,612 INFO L87 Difference]: Start difference. First operand 322 states and 346 transitions. Second operand 100 states. [2018-03-29 20:17:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:02,966 INFO L93 Difference]: Finished difference Result 358 states and 385 transitions. [2018-03-29 20:17:02,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-03-29 20:17:02,966 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 243 [2018-03-29 20:17:02,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:02,967 INFO L225 Difference]: With dead ends: 358 [2018-03-29 20:17:02,967 INFO L226 Difference]: Without dead ends: 357 [2018-03-29 20:17:02,968 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 [2018-03-29 20:17:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-03-29 20:17:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 337. [2018-03-29 20:17:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-03-29 20:17:03,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 362 transitions. [2018-03-29 20:17:03,001 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 362 transitions. Word has length 243 [2018-03-29 20:17:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:03,002 INFO L459 AbstractCegarLoop]: Abstraction has 337 states and 362 transitions. [2018-03-29 20:17:03,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-03-29 20:17:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 362 transitions. [2018-03-29 20:17:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-03-29 20:17:03,004 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:03,004 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] [2018-03-29 20:17:03,004 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:03,004 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 [2018-03-29 20:17:03,012 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:03,054 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 642 proven. 684 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:03,684 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 642 proven. 684 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:04,434 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:04,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 78 [2018-03-29 20:17:04,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-03-29 20:17:04,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-03-29 20:17:04,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=779, Invalid=5227, Unknown=0, NotChecked=0, Total=6006 [2018-03-29 20:17:04,435 INFO L87 Difference]: Start difference. First operand 337 states and 362 transitions. Second operand 78 states. [2018-03-29 20:17:06,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:06,204 INFO L93 Difference]: Finished difference Result 557 states and 598 transitions. [2018-03-29 20:17:06,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-03-29 20:17:06,204 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 252 [2018-03-29 20:17:06,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:06,206 INFO L225 Difference]: With dead ends: 557 [2018-03-29 20:17:06,206 INFO L226 Difference]: Without dead ends: 356 [2018-03-29 20:17:06,207 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 [2018-03-29 20:17:06,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-03-29 20:17:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 348. [2018-03-29 20:17:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-03-29 20:17:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 374 transitions. [2018-03-29 20:17:06,257 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 374 transitions. Word has length 252 [2018-03-29 20:17:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:06,257 INFO L459 AbstractCegarLoop]: Abstraction has 348 states and 374 transitions. [2018-03-29 20:17:06,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-03-29 20:17:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 374 transitions. [2018-03-29 20:17:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-03-29 20:17:06,259 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:06,259 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] [2018-03-29 20:17:06,259 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:06,259 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 [2018-03-29 20:17:06,267 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:06,338 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 744 proven. 704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:07,901 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:08,780 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 [2018-03-29 20:17:08,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:08,785 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 [2018-03-29 20:17:08,786 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:08,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:17:08,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:17:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 744 proven. 704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:10,781 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:10,781 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 107 [2018-03-29 20:17:10,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-03-29 20:17:10,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-03-29 20:17:10,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1020, Invalid=10536, Unknown=0, NotChecked=0, Total=11556 [2018-03-29 20:17:10,783 INFO L87 Difference]: Start difference. First operand 348 states and 374 transitions. Second operand 108 states. [2018-03-29 20:17:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:15,691 INFO L93 Difference]: Finished difference Result 384 states and 413 transitions. [2018-03-29 20:17:15,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-03-29 20:17:15,692 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 262 [2018-03-29 20:17:15,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:15,693 INFO L225 Difference]: With dead ends: 384 [2018-03-29 20:17:15,693 INFO L226 Difference]: Without dead ends: 383 [2018-03-29 20:17:15,694 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8630 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=5182, Invalid=29228, Unknown=0, NotChecked=0, Total=34410 [2018-03-29 20:17:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-03-29 20:17:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 363. [2018-03-29 20:17:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-03-29 20:17:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 390 transitions. [2018-03-29 20:17:15,740 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 390 transitions. Word has length 262 [2018-03-29 20:17:15,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:15,740 INFO L459 AbstractCegarLoop]: Abstraction has 363 states and 390 transitions. [2018-03-29 20:17:15,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-03-29 20:17:15,740 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 390 transitions. [2018-03-29 20:17:15,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-03-29 20:17:15,741 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:15,742 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] [2018-03-29 20:17:15,742 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:15,742 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 [2018-03-29 20:17:15,749 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:15,798 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:16,503 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:17,363 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:17,364 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 84 [2018-03-29 20:17:17,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-03-29 20:17:17,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-03-29 20:17:17,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=895, Invalid=6077, Unknown=0, NotChecked=0, Total=6972 [2018-03-29 20:17:17,365 INFO L87 Difference]: Start difference. First operand 363 states and 390 transitions. Second operand 84 states. [2018-03-29 20:17:19,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:19,322 INFO L93 Difference]: Finished difference Result 598 states and 642 transitions. [2018-03-29 20:17:19,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-03-29 20:17:19,322 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 271 [2018-03-29 20:17:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:19,323 INFO L225 Difference]: With dead ends: 598 [2018-03-29 20:17:19,323 INFO L226 Difference]: Without dead ends: 382 [2018-03-29 20:17:19,324 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 431 SyntacticMatches, 28 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6291 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3428, Invalid=19222, Unknown=0, NotChecked=0, Total=22650 [2018-03-29 20:17:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-03-29 20:17:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 374. [2018-03-29 20:17:19,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-03-29 20:17:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 402 transitions. [2018-03-29 20:17:19,361 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 402 transitions. Word has length 271 [2018-03-29 20:17:19,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:19,361 INFO L459 AbstractCegarLoop]: Abstraction has 374 states and 402 transitions. [2018-03-29 20:17:19,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-03-29 20:17:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 402 transitions. [2018-03-29 20:17:19,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-03-29 20:17:19,362 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:19,363 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] [2018-03-29 20:17:19,363 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:19,363 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 [2018-03-29 20:17:19,369 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:19,419 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 871 proven. 821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:21,071 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:22,127 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 [2018-03-29 20:17:22,128 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:22,133 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 [2018-03-29 20:17:22,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:22,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:17:22,135 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:17:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 871 proven. 821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:24,492 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:24,492 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 115 [2018-03-29 20:17:24,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-03-29 20:17:24,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-03-29 20:17:24,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1154, Invalid=12186, Unknown=0, NotChecked=0, Total=13340 [2018-03-29 20:17:24,494 INFO L87 Difference]: Start difference. First operand 374 states and 402 transitions. Second operand 116 states. [2018-03-29 20:17:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:30,443 INFO L93 Difference]: Finished difference Result 410 states and 441 transitions. [2018-03-29 20:17:30,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-03-29 20:17:30,443 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 281 [2018-03-29 20:17:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:30,445 INFO L225 Difference]: With dead ends: 410 [2018-03-29 20:17:30,445 INFO L226 Difference]: Without dead ends: 409 [2018-03-29 20:17:30,446 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10049 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=5917, Invalid=33883, Unknown=0, NotChecked=0, Total=39800 [2018-03-29 20:17:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-03-29 20:17:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 389. [2018-03-29 20:17:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-03-29 20:17:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 418 transitions. [2018-03-29 20:17:30,513 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 418 transitions. Word has length 281 [2018-03-29 20:17:30,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:30,513 INFO L459 AbstractCegarLoop]: Abstraction has 389 states and 418 transitions. [2018-03-29 20:17:30,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-03-29 20:17:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 418 transitions. [2018-03-29 20:17:30,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-03-29 20:17:30,514 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:30,514 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] [2018-03-29 20:17:30,514 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:30,514 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 [2018-03-29 20:17:30,520 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:30,567 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 875 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:31,360 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 875 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:32,522 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:32,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 90 [2018-03-29 20:17:32,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-03-29 20:17:32,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-03-29 20:17:32,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=6991, Unknown=0, NotChecked=0, Total=8010 [2018-03-29 20:17:32,538 INFO L87 Difference]: Start difference. First operand 389 states and 418 transitions. Second operand 90 states. [2018-03-29 20:17:34,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:34,784 INFO L93 Difference]: Finished difference Result 639 states and 686 transitions. [2018-03-29 20:17:34,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-03-29 20:17:34,785 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 290 [2018-03-29 20:17:34,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:34,786 INFO L225 Difference]: With dead ends: 639 [2018-03-29 20:17:34,786 INFO L226 Difference]: Without dead ends: 408 [2018-03-29 20:17:34,787 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 461 SyntacticMatches, 30 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7286 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3921, Invalid=22161, Unknown=0, NotChecked=0, Total=26082 [2018-03-29 20:17:34,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2018-03-29 20:17:34,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2018-03-29 20:17:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-03-29 20:17:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 430 transitions. [2018-03-29 20:17:34,854 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 430 transitions. Word has length 290 [2018-03-29 20:17:34,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:34,854 INFO L459 AbstractCegarLoop]: Abstraction has 400 states and 430 transitions. [2018-03-29 20:17:34,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-03-29 20:17:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 430 transitions. [2018-03-29 20:17:34,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-03-29 20:17:34,856 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:34,857 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] [2018-03-29 20:17:34,857 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:34,857 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 [2018-03-29 20:17:34,867 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:34,927 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1008 proven. 947 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:36,430 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:37,565 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 [2018-03-29 20:17:37,565 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:37,570 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 [2018-03-29 20:17:37,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:37,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:17:37,573 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:17:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1008 proven. 947 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:40,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:40,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 123 [2018-03-29 20:17:40,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-03-29 20:17:40,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-03-29 20:17:40,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1296, Invalid=13956, Unknown=0, NotChecked=0, Total=15252 [2018-03-29 20:17:40,128 INFO L87 Difference]: Start difference. First operand 400 states and 430 transitions. Second operand 124 states. [2018-03-29 20:17:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:46,784 INFO L93 Difference]: Finished difference Result 436 states and 469 transitions. [2018-03-29 20:17:46,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-29 20:17:46,785 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 300 [2018-03-29 20:17:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:46,786 INFO L225 Difference]: With dead ends: 436 [2018-03-29 20:17:46,786 INFO L226 Difference]: Without dead ends: 435 [2018-03-29 20:17:46,787 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 [2018-03-29 20:17:46,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2018-03-29 20:17:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 415. [2018-03-29 20:17:46,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-03-29 20:17:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 446 transitions. [2018-03-29 20:17:46,844 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 446 transitions. Word has length 300 [2018-03-29 20:17:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:46,845 INFO L459 AbstractCegarLoop]: Abstraction has 415 states and 446 transitions. [2018-03-29 20:17:46,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-03-29 20:17:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 446 transitions. [2018-03-29 20:17:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-03-29 20:17:46,848 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:46,848 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] [2018-03-29 20:17:46,848 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:46,848 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 [2018-03-29 20:17:46,858 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:46,940 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 1005 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:48,010 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 1005 proven. 1080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:49,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:49,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 96 [2018-03-29 20:17:49,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-03-29 20:17:49,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-03-29 20:17:49,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1151, Invalid=7969, Unknown=0, NotChecked=0, Total=9120 [2018-03-29 20:17:49,124 INFO L87 Difference]: Start difference. First operand 415 states and 446 transitions. Second operand 96 states. [2018-03-29 20:17:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:17:51,669 INFO L93 Difference]: Finished difference Result 680 states and 730 transitions. [2018-03-29 20:17:51,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-03-29 20:17:51,669 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 309 [2018-03-29 20:17:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:17:51,671 INFO L225 Difference]: With dead ends: 680 [2018-03-29 20:17:51,672 INFO L226 Difference]: Without dead ends: 434 [2018-03-29 20:17:51,674 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 [2018-03-29 20:17:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-03-29 20:17:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2018-03-29 20:17:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-03-29 20:17:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 458 transitions. [2018-03-29 20:17:51,720 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 458 transitions. Word has length 309 [2018-03-29 20:17:51,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:17:51,720 INFO L459 AbstractCegarLoop]: Abstraction has 426 states and 458 transitions. [2018-03-29 20:17:51,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-03-29 20:17:51,720 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 458 transitions. [2018-03-29 20:17:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-03-29 20:17:51,722 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:17:51,722 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] [2018-03-29 20:17:51,722 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:17:51,722 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 [2018-03-29 20:17:51,733 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:17:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:17:51,795 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:17:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1155 proven. 1082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:53,615 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:17:54,891 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 [2018-03-29 20:17:54,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:54,896 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 [2018-03-29 20:17:54,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:17:54,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:17:54,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:11 [2018-03-29 20:17:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1155 proven. 1082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:17:57,744 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:17:57,744 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 131 [2018-03-29 20:17:57,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-03-29 20:17:57,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-03-29 20:17:57,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1446, Invalid=15846, Unknown=0, NotChecked=0, Total=17292 [2018-03-29 20:17:57,746 INFO L87 Difference]: Start difference. First operand 426 states and 458 transitions. Second operand 132 states. [2018-03-29 20:18:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:18:04,687 INFO L93 Difference]: Finished difference Result 462 states and 497 transitions. [2018-03-29 20:18:04,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-03-29 20:18:04,688 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 319 [2018-03-29 20:18:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:18:04,690 INFO L225 Difference]: With dead ends: 462 [2018-03-29 20:18:04,690 INFO L226 Difference]: Without dead ends: 461 [2018-03-29 20:18:04,692 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 [2018-03-29 20:18:04,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2018-03-29 20:18:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 441. [2018-03-29 20:18:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2018-03-29 20:18:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 474 transitions. [2018-03-29 20:18:04,750 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 474 transitions. Word has length 319 [2018-03-29 20:18:04,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:18:04,750 INFO L459 AbstractCegarLoop]: Abstraction has 441 states and 474 transitions. [2018-03-29 20:18:04,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-03-29 20:18:04,750 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 474 transitions. [2018-03-29 20:18:04,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-03-29 20:18:04,752 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:18:04,752 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] [2018-03-29 20:18:04,753 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-03-29 20:18:04,753 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 [2018-03-29 20:18:04,764 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:18:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:18:04,817 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:18:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2376 backedges. 1144 proven. 1232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:18:05,812 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:18:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2376 backedges. 1144 proven. 1232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:18:07,048 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:18:07,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 102 [2018-03-29 20:18:07,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-03-29 20:18:07,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-03-29 20:18:07,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1291, Invalid=9011, Unknown=0, NotChecked=0, Total=10302 [2018-03-29 20:18:07,050 INFO L87 Difference]: Start difference. First operand 441 states and 474 transitions. Second operand 102 states. Received shutdown request... [2018-03-29 20:18:09,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-03-29 20:18:09,559 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 20:18:09,562 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 20:18:09,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 08:18:09 BoogieIcfgContainer [2018-03-29 20:18:09,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 20:18:09,563 INFO L168 Benchmark]: Toolchain (without parser) took 127439.05 ms. Allocated memory was 303.6 MB in the beginning and 763.4 MB in the end (delta: 459.8 MB). Free memory was 240.5 MB in the beginning and 322.0 MB in the end (delta: -81.5 MB). Peak memory consumption was 378.3 MB. Max. memory is 5.3 GB. [2018-03-29 20:18:09,564 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 303.6 MB. Free memory is still 266.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:18:09,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.34 ms. Allocated memory is still 303.6 MB. Free memory was 240.5 MB in the beginning and 216.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-03-29 20:18:09,564 INFO L168 Benchmark]: Boogie Preprocessor took 48.86 ms. Allocated memory is still 303.6 MB. Free memory was 216.6 MB in the beginning and 214.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:18:09,565 INFO L168 Benchmark]: RCFGBuilder took 459.21 ms. Allocated memory was 303.6 MB in the beginning and 467.1 MB in the end (delta: 163.6 MB). Free memory was 214.6 MB in the beginning and 405.0 MB in the end (delta: -190.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 5.3 GB. [2018-03-29 20:18:09,565 INFO L168 Benchmark]: TraceAbstraction took 126610.87 ms. Allocated memory was 467.1 MB in the beginning and 763.4 MB in the end (delta: 296.2 MB). Free memory was 405.0 MB in the beginning and 322.0 MB in the end (delta: 83.0 MB). Peak memory consumption was 379.2 MB. Max. memory is 5.3 GB. [2018-03-29 20:18:09,567 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 303.6 MB. Free memory is still 266.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 314.34 ms. Allocated memory is still 303.6 MB. Free memory was 240.5 MB in the beginning and 216.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 48.86 ms. Allocated memory is still 303.6 MB. Free memory was 216.6 MB in the beginning and 214.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 459.21 ms. Allocated memory was 303.6 MB in the beginning and 467.1 MB in the end (delta: 163.6 MB). Free memory was 214.6 MB in the beginning and 405.0 MB in the end (delta: -190.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 126610.87 ms. Allocated memory was 467.1 MB in the beginning and 763.4 MB in the end (delta: 296.2 MB). Free memory was 405.0 MB in the beginning and 322.0 MB in the end (delta: 83.0 MB). Peak memory consumption was 379.2 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - 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 90 states, 102 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 12. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 74 locations, 9 error locations. TIMEOUT Result, 126.5s OverallTime, 40 OverallIterations, 17 TraceHistogramMax, 66.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4993 SDtfs, 30554 SDslu, 108061 SDs, 0 SdLazy, 62899 SolverSat, 2343 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13596 GetRequests, 9705 SyntacticMatches, 310 SemanticMatches, 3580 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 131044 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, 55.8s 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-0-2018-03-29_20-18-09-576.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-0-2018-03-29_20-18-09-576.csv Completed graceful shutdown