Trace number 309970

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Hybrid1 2007-02-08SAT 0.305952 0.306969

General information on the benchmark

Namerandom/2+p/p0.9/v1170/
unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
MD5SUM555d3271dcf55d0b05dd23da8baa6ad3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables1170
Number of clauses4234
Sum of the clauses size12279
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2423
Number of clauses of size 33811
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.20/0.30	c try 1 flip j 188951
0.20/0.30	c A solution is found
0.20/0.30	s SATISFIABLE
0.20/0.30	v -1 -2 -3 4 5 -6 -7 8 -9 -10 -11 -12 13 14 -15 16 17 -18 -19 -20 21 22 23 24 -25 -26 -27 28 29 -30 31 -32 -33 -34 35 -36 -37 38 39 -40 -41 42 43 44 -45 -46 47 48 49 50 -51 -52 -53 -54 -55 56 -57 58 59 60 -61 62 63 64 65 66 -67 -68 69 70 -71 72 -73 74 75 76 -77 -78 79 80 -81 -82 -83 84 85 86 87 -88 -89 90 -91 92 -93 94 -95 96 -97 -98 -99 -100 101 -102 -103 -104 -105 106 -107 -108 -109 110 -111 -112 -113 114 115 116 117 -118 119 120 -121 122 -123 124 -125 -126 -127 -128 129 130 131 -132 -133 -134 -135 136 137 -138 139 140 141 142 -143 -144 145 -146 -147 -148 149 -150 151 -152 -153 -154 155 156 157 -158 159 -160 161 162 163 164 -165 -166 -167 168 169 -170 171 -172 173 -174 -175 176 177 178 -179 -180 181 182 -183 -184 185 -186 187 188 189 190 -191 192 -193 194 195 196 -197 198 -199 200 -201 -202 203 204 205 206 207 208 209 210 211 -212 213 214 215 -216 -217 218 219 -220 221 222 223 -224 -225 -226 227 -228 229 -230 -231 -232 233 234 235 -236 -237 -238 -239 240 -241 -242 -243 -244 245 -246 247 -248 249 250 251 -252 253 254 255 -256 257 -258 259 260 -261 -262 -263 -264 -265 -266 -267 268 -269 -270 271 -272 273 274 -275 276 277 278 279 -280 281 -282 -283 284 -285 -286 287 -288 289 -290 -291 292 293 -294 -295 296 -297 -298 299 -300 301 302 -303 304 -305 -306 -307 -308 309 310 -311 -312 313 -314 315 316 -317 -318 319 320 321 322 -323 -324 325 326 -327 -328 329 330 331 332 -333 -334 335 -336 337 338 339 -340 341 342 343 -344 -345 346 -347 -348 349 -350 -351 -352 -353 354 355 -356 357 358 -359 360 -361 -362 -363 364 -365 -366 367 368 -369 -370 -371 -372 -373 374 375 376 -377 -378 379 380 381 -382 383 384 385 386 -387 388 -389 -390 -391 -392 -393 -394 -395 -396 397 398 -399 -400 -401 -402 403 404 -405 406 -407 -408 -409 -410 -411 -412 413 414 -415 -416 417 -418 -419 -420 421 -422 423 -424 425 426 427 428 429 -430 -431 -432 -433 -434 -435 -436 437 438 439 -440 -441 442 443 444 -445 446 -447 -448 -449 -450 -451 452 -453 454 -455 -456 -457 -458 459 460 -461 -462 463 464 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-686 687 -688 689 690 -691 692 693 694 -695 696 697 -698 699 -700 -701 -702 -703 -704 -705 706 -707 -708 709 -710 711 -712 -713 714 715 716 717 718 719 720 -721 722 723 -724 -725 726 -727 -728 729 -730 -731 -732 -733 734 -735 736 737 738 739 740 -741 742 743 744 745 -746 747 748 749 750 -751 -752 -753 754 -755 -756 757 758 -759 -760 -761 762 -763 -764 -765 -766 -767 -768 769 -770 771 772 773 -774 -775 -776 777 -778 -779 -780 -781 -782 783 784 785 786 -787 -788 789 790 -791 792 793 794 -795 796 -797 798 -799 800 801 802 -803 -804 805 -806 807 808 809 810 811 812 -813 -814 -815 -816 -817 -818 819 -820 -821 -822 823 824 825 -826 827 828 829 -830 -831 -832 -833 -834 835 -836 -837 -838 -839 -840 -841 842 -843 844 -845 -846 847 -848 849 850 851 852 -853 -854 -855 856 -857 858 -859 -860 -861 -862 863 -864 865 -866 867 868 -869 -870 -871 -872 -873 874 875 876 -877 878 -879 880 -881 -882 883 -884 885 886 887 888 -889 -890 891 892 -893 894 895 -896 897 -898 -899 900 901 -902 903 904 -905 -906 -907 -908 -909 910 -911 -912 -913 914 -915 916 917 918 919 920 921 922 -923 924 925 -926 927 928 929 -930 -931 932 933 -934 -935 936 937 938 939 -940 -941 -942 943 944 945 -946 947 -948 -949 -950 -951 -952 -953 -954 955 956 -957 958 -959 960 961 -962 -963 964 -965 966 -967 -968 969 970 971 972 973 -974 -975 976 977 978 979 980 -981 982 -983 984 -985 986 987 988 -989 990 -991 992 993 994 995 -996 997 998 999 -1000 1001 -1002 -1003 -1004 1005 -1006 1007 1008 1009 1010 -1011 1012 -1013 1014 1015 -1016 -1017 -1018 1019 1020 1021 1022 -1023 -1024 -1025 1026 1027 -1028 1029 -1030 -1031 -1032 1033 -1034 -1035 1036 -1037 1038 -1039 -1040 1041 -1042 1043 1044 1045 -1046 -1047 1048 -1049 -1050 1051 1052 1053 1054 -1055 1056 -1057 -1058 1059 -1060 1061 1062 -1063 -1064 -1065 1066 -1067 1068 1069 -1070 -1071 -1072 1073 -1074 -1075 -1076 -1077 1078 1079 1080 1081 1082 -1083 1084 -1085 1086 1087 1088 1089 -1090 1091 -1092 1093 1094 1095 1096 1097 -1098 -1099 1100 1101 -1102 1103 -1104 -1105 1106 1107 1108 -1109 -1110 1111 1112 1113 1114 1115 -1116 -1117 1118 1119 -1120 1121 1122 -1123 -1124 -1125 -1126 -1127 -1128 -1129 1130 1131 -1132 -1133 -1134 1135 -1136 -1137 1138 -1139 -1140 1141 -1142 -1143 -1144 1145 1146 1147 1148 1149 -1150 1151 -1152 -1153 -1154 -1155 -1156 1157 1158 1159 -1160 -1161 -1162 -1163 1164 -1165 -1166 -1167 -1168 1169 1170 
0.20/0.30	v 0 
0.20/0.30	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node66/watcher-309970-1172551042 -o ROOT/results/node66/solver-309970-1172551042 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309970-1172551042/Hybrid1 /tmp/evaluation/309970-1172551042/instance-309970-1172551042.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.97 0.98 3/64 15359
/proc/meminfo: memFree=1814744/2055920 swapFree=4179812/4192956
[pid=15359] ppid=15357 vsize=244720 CPUtime=0
/proc/15359/stat : 15359 (Hybrid1) R 15357 15359 13895 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 275061757 250593280 83 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134604589 0 0 4096 0 0 0 0 17 1 0 0
/proc/15359/statm: 61180 83 39 103 0 60684 0

[startup+0.106878 s]
/proc/loadavg: 0.91 0.97 0.98 3/64 15359
/proc/meminfo: memFree=1814744/2055920 swapFree=4179812/4192956
[pid=15359] ppid=15357 vsize=246664 CPUtime=0.1
/proc/15359/stat : 15359 (Hybrid1) R 15357 15359 13895 0 -1 4194304 287 0 0 0 10 0 0 0 18 0 1 0 275061757 252583936 267 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553666 0 0 4096 0 0 0 0 17 1 0 0
/proc/15359/statm: 61666 267 44 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

Solver just ended. Dumping a history of the last processes samples

[startup+0.208897 s]
/proc/loadavg: 0.91 0.97 0.98 3/64 15359
/proc/meminfo: memFree=1814744/2055920 swapFree=4179812/4192956
[pid=15359] ppid=15357 vsize=246664 CPUtime=0.2
/proc/15359/stat : 15359 (Hybrid1) R 15357 15359 13895 0 -1 4194304 287 0 0 0 20 0 0 0 19 0 1 0 275061757 252583936 267 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134545096 0 0 4096 0 0 0 0 17 1 0 0
/proc/15359/statm: 61666 267 44 103 0 61170 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 0.306969
CPU time (s): 0.305952
CPU user time (s): 0.303953
CPU system time (s): 0.001999
CPU usage (%): 99.6687
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.303953
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 300
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node66 on Tue Feb 27 04:37:22 UTC 2007

IDJOB= 309970
IDBENCH= 20274
IDSOLVER= 115
FILE ID= node66/309970-1172551042

PBS_JOBID= 3971834

Free space on /tmp= 66556 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v1170/unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
COMMAND LINE= /tmp/evaluation/309970-1172551042/Hybrid1 /tmp/evaluation/309970-1172551042/instance-309970-1172551042.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-309970-1172551042 -o ROOT/results/node66/solver-309970-1172551042 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309970-1172551042/Hybrid1 /tmp/evaluation/309970-1172551042/instance-309970-1172551042.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  555d3271dcf55d0b05dd23da8baa6ad3

RANDOM SEED= 416887863

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1815280 kB
Buffers:         29836 kB
Cached:         158600 kB
SwapCached:       7404 kB
Active:          93320 kB
Inactive:       108508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815280 kB
SwapTotal:     4192956 kB
SwapFree:      4179812 kB
Dirty:            6180 kB
Writeback:           0 kB
Mapped:          15440 kB
Slab:            24932 kB
Committed_AS:   669236 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB

End job on node66 on Tue Feb 27 04:37:23 UTC 2007