Trace number 311096

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
SATzilla RANDOMSAT 1.46878 1.47087

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
MD5SUM5b71a13667daed42fef777f7d5fe2376
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 variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

1.44/1.46	c run March_dl for 5 seconds ... 
1.44/1.46	c Bin: Executing march_dl
1.44/1.46	c child exited successfully
1.44/1.46	c march_dl returned code 10.
1.44/1.46	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.44/1.46	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.44/1.46	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.44/1.46	c main()::
1.44/1.46	c initFormula():: searching for DIMACS p-line....
1.44/1.46	c initFormula():: the DIMACS p-line indicates a CNF of 1295 variables and 4026 clauses.
1.44/1.46	c parseCNF():: parsing....
1.44/1.46	c parseCNF():: the CNF contains 0 unary clauses.
1.44/1.46	c runParser():: parsing was successful, warming up engines...
1.44/1.46	c find_and_remove_tautogolies():: found and removed 1 tautologies
1.44/1.46	c simplify_formula():: removed 0 tautological, 155 satisfied and 0 duplicate clauses
1.44/1.46	c preprocessing fase I completed:: there are now 1266 free variables and 3871 clauses.
1.44/1.46	c shorten_equivalence(): average equivalence length reduced from nan to nan
1.44/1.46	c doublelook_init():: 90% succes rate goal.
1.44/1.46	c root_subsume():: 8 ternary clauses were subsumed, nrofceq = 23
1.44/1.46	c find_and_remove_tautogolies():: found and removed 21 tautologies
1.44/1.46	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 23
1.44/1.46	c lessRedundantTransformation():: nothing to be done.
1.44/1.46	c transformTo3SAT():: you gave me 1295 variables and 3879 clauses.
1.44/1.46	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
1.44/1.46	c transformTo3SAT():: CHAINPLUS defined.
1.44/1.46	c transformTo3SAT():: I will add 0 variables and 0 clauses!
1.44/1.46	c transformTo3SAT():: the transformation yielded 1295 variabels and 3879 clauses.
1.44/1.46	c main():: clause / variable ratio: ( 3879 / 1295 ) = 3.00
1.44/1.46	c lengthWeight[ 2 ] = 3.97 : 1.00
1.44/1.46	c lengthWeight[ 3 ] = 3.38 : 0.85
1.44/1.46	c lengthWeight[ 4 ] = 2.87 : 0.72
1.44/1.46	c lengthWeight[ 5 ] = 2.44 : 0.61
1.44/1.46	c doublelook_init():: 90% succes rate goal.
1.44/1.46	c AddTernaryResolvents(): ternary clauses increased from 3879 to 3915
1.44/1.46	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 23
1.44/1.46	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.44/1.46	c check_ternary_clause_density :: low
1.44/1.46	c root full lookahead
1.44/1.46	c freevars: 1244, independend: 1244, ternary clauses: 3119 
1.44/1.46	c main():: all systems go!
1.44/1.46	c |----------------------------------------------------------------|
c |
1.44/1.46	c
1.44/1.46	c main():: nodeCount: 1282
1.44/1.46	c main():: dead ends in main: 4
1.44/1.46	c main():: lookAheadCount: 274355
1.44/1.46	c main():: unitResolveCount: 39895
1.44/1.46	c main():: time=1.460000
1.44/1.46	c main():: necessary_assignments: 1348
1.44/1.46	c main():: bin_sat: 0, bin_unsat 0
1.44/1.46	c main():: doublelook: #: 2361, succes #: 2120
1.44/1.46	c main():: doublelook: succesrate: 89.792, threshold: 0.096 * nrofvars
1.44/1.46	c main():: SOLUTION VERIFIED :-)
1.44/1.46	s SATISFIABLE
1.44/1.46	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 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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 1171 -1172 1173 1174 1175 1176 1177 -1178 1179 -1180 -1181 1182 1183 1184 -1185 1186 1187 1188 -1189 -1190 -1191 1192 -1193 1194 -1195 -1196 -1197 -1198 -1199 1200 1201 1202 -1203 1204 1205 -1206 1207 -1208 -1209 -1210 1211 1212 -1213 -1214 1215 -1216 1217 1218 1219 1220 1221 -1222 -1223 1224 -1225 -1226 1227 -1228 1229 1230 -1231 -1232 1233 1234 1235 1236 1237 -1238 1239 1240 -1241 1242 1243 1244 1245 1246 1247 -1248 1249 1250 -1251 1252 1253 1254 1255 -1256 -1257 -1258 -1259 -1260 -1261 1262 1263 1264 -1265 1266 -1267 -1268 1269 1270 1271 1272 1273 -1274 -1275 -1276 1277 -1278 1279 1280 1281 1282 -1283 1284 1285 -1286 -1287 -1288 1289 1290 -1291 1292 -1293 1294 1295 0
1.44/1.47	c SATZILLA_TIME=1.460000

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/node29/watcher-311096-1172564493 -o ROOT/results/node29/solver-311096-1172564493 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311096-1172564493/SATzilla2007_R /tmp/evaluation/311096-1172564493/instance-311096-1172564493.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: 1.00 1.00 0.98 3/77 22293
/proc/meminfo: memFree=1812952/2055920 swapFree=4143368/4192956
[pid=22293] ppid=22291 vsize=1440 CPUtime=0
/proc/22293/stat : 22293 (SATzilla2007_R) S 22291 22293 21143 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 250213545 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/22293/statm: 360 110 95 260 0 84 0
[pid=22294] ppid=22293 vsize=768 CPUtime=0
/proc/22294/stat : 22294 (march_dl) R 22293 22293 21143 0 -1 4194304 100 0 0 0 0 0 0 0 19 0 1 0 250213545 786432 95 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/22294/statm: 192 96 50 118 0 71 0

[startup+0.107824 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 22293
/proc/meminfo: memFree=1812952/2055920 swapFree=4143368/4192956
[pid=22293] ppid=22291 vsize=1440 CPUtime=0
/proc/22293/stat : 22293 (SATzilla2007_R) S 22291 22293 21143 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 250213545 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/22293/statm: 360 110 95 260 0 84 0
[pid=22294] ppid=22293 vsize=1996 CPUtime=0.1
/proc/22294/stat : 22294 (march_dl) R 22293 22293 21143 0 -1 4194304 441 0 0 0 10 0 0 0 20 0 1 0 250213545 2043904 424 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134663598 0 0 8392704 0 0 0 0 17 1 0 0
/proc/22294/statm: 499 424 75 118 0 378 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3436

[startup+0.51985 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 22293
/proc/meminfo: memFree=1812952/2055920 swapFree=4143368/4192956
[pid=22293] ppid=22291 vsize=1440 CPUtime=0
/proc/22293/stat : 22293 (SATzilla2007_R) S 22291 22293 21143 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 250213545 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/22293/statm: 360 110 95 260 0 84 0
[pid=22294] ppid=22293 vsize=2128 CPUtime=0.51
/proc/22294/stat : 22294 (march_dl) R 22293 22293 21143 0 -1 4194304 485 0 0 0 51 0 0 0 23 0 1 0 250213545 2179072 468 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134526923 0 0 8392704 0 0 0 0 17 1 0 0
/proc/22294/statm: 532 468 75 118 0 411 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3568

[startup+1.3449 s]
/proc/loadavg: 1.00 1.00 0.98 2/79 22295
/proc/meminfo: memFree=1811080/2055920 swapFree=4143368/4192956
[pid=22293] ppid=22291 vsize=1440 CPUtime=0
/proc/22293/stat : 22293 (SATzilla2007_R) S 22291 22293 21143 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 250213545 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/22293/statm: 360 110 95 260 0 84 0
[pid=22294] ppid=22293 vsize=2260 CPUtime=1.34
/proc/22294/stat : 22294 (march_dl) R 22293 22293 21143 0 -1 4194304 510 0 0 0 134 0 0 0 25 0 1 0 250213545 2314240 493 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514321 0 0 8392704 0 0 0 0 17 1 0 0
/proc/22294/statm: 565 493 75 118 0 444 0
Current children cumulated CPU time (s) 1.34
Current children cumulated vsize (KiB) 3700

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

[startup+1.44691 s]
/proc/loadavg: 1.00 1.00 0.98 2/79 22295
/proc/meminfo: memFree=1811080/2055920 swapFree=4143368/4192956
[pid=22293] ppid=22291 vsize=1440 CPUtime=0
/proc/22293/stat : 22293 (SATzilla2007_R) S 22291 22293 21143 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 250213545 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/22293/statm: 360 110 95 260 0 84 0
[pid=22294] ppid=22293 vsize=2260 CPUtime=1.44
/proc/22294/stat : 22294 (march_dl) R 22293 22293 21143 0 -1 4194304 511 0 0 0 144 0 0 0 25 0 1 0 250213545 2314240 494 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134552200 0 0 8392704 0 0 0 0 17 1 0 0
/proc/22294/statm: 565 494 75 118 0 444 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 3700

Child status: 10
Real time (s): 1.47087
CPU time (s): 1.46878
CPU user time (s): 1.46478
CPU system time (s): 0.003999
CPU usage (%): 99.8578
Max. virtual memory (cumulated for all children) (KiB): 3700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.46478
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 672
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= 14
involuntary context switches= 5

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Tue Feb 27 08:21:33 UTC 2007

IDJOB= 311096
IDBENCH= 20304
IDSOLVER= 134
FILE ID= node29/311096-1172564493

PBS_JOBID= 3971874

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/311096-1172564493/SATzilla2007_R /tmp/evaluation/311096-1172564493/instance-311096-1172564493.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-311096-1172564493 -o ROOT/results/node29/solver-311096-1172564493 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311096-1172564493/SATzilla2007_R /tmp/evaluation/311096-1172564493/instance-311096-1172564493.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  5b71a13667daed42fef777f7d5fe2376

RANDOM SEED= 301846825

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.209
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		: 3000.209
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:       1813360 kB
Buffers:         34984 kB
Cached:         138836 kB
SwapCached:      17668 kB
Active:         112228 kB
Inactive:        90312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1813360 kB
SwapTotal:     4192956 kB
SwapFree:      4143368 kB
Dirty:            8584 kB
Writeback:           0 kB
Mapped:          30032 kB
Slab:            25472 kB
Committed_AS:   730632 kB
PageTables:       1864 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 node29 on Tue Feb 27 08:21:35 UTC 2007