Trace number 1738131

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MiniSat 2.1 (Sat-race'08 Edition)SAT 51.2542 51.2696

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-20-152-18-95.cnf
MD5SUMc56a1400f0bd9306a380dfa6653baa1d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.038993
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses15466
Sum of the clauses size31256
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215448
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 518

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:           360                                         |
0.00/0.01	c |  Number of clauses:           15466                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.01/0.08	c |  Simplification time:          0.08 s                                       |
0.01/0.08	c |                                                                             |
0.01/0.08	c ============================[ Search Statistics ]==============================
0.01/0.08	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.08	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.08	c ===============================================================================
0.01/0.09	c |       100 |     348    15226    39668 |     5582      100     47 |  0.001 % |
0.01/0.09	c |       250 |     348    15226    39668 |     6141      250     48 |  0.001 % |
0.01/0.10	c |       475 |     348    15226    39668 |     6755      475     56 |  0.001 % |
0.09/0.11	c |       812 |     348    15226    39668 |     7430      812     54 |  0.001 % |
0.09/0.12	c |      1318 |     348    15226    39668 |     8173     1318     51 |  0.001 % |
0.09/0.14	c |      2077 |     348    15226    39668 |     8991     2077     51 |  0.001 % |
0.09/0.18	c |      3216 |     348    15226    39668 |     9890     3216     47 |  0.001 % |
0.19/0.25	c |      4924 |     348    15226    39668 |    10879     4924     45 |  0.001 % |
0.29/0.36	c |      7486 |     348    15226    39668 |    11967     7486     47 |  0.001 % |
0.49/0.56	c |     11330 |     348    15226    39668 |    13164    11330     48 |  0.001 % |
1.00/1.02	c |     17096 |     348    15226    39668 |    14480    10473     54 |  0.001 % |
1.69/1.79	c |     25745 |     348    15226    39668 |    15928    11797     53 |  0.001 % |
3.20/3.23	c |     38719 |     348    15226    39668 |    17521     8657     53 |  0.001 % |
6.09/6.15	c |     58180 |     348    15226    39668 |    19273    10528     54 |  0.001 % |
10.18/10.22	c |     87372 |     348    15226    39668 |    21200    10703     51 |  0.001 % |
15.68/15.71	c |    131161 |     348    15226    39668 |    23321    11817     49 |  0.001 % |
23.38/23.49	c |    196845 |     348    15226    39668 |    25653    18726     55 |  0.001 % |
39.88/39.98	c |    295371 |     348    15226    39668 |    28218    14042     52 |  0.001 % |
51.18/51.26	c ===============================================================================
51.18/51.26	c restarts              : 844
51.18/51.26	c conflicts             : 355474         (6943 /sec)
51.18/51.26	c decisions             : 469165         (9164 /sec)
51.18/51.26	c propagations          : 16438866       (321083 /sec)
51.18/51.26	c conflict literals     : 19462565       (25.60 % deleted)
51.18/51.26	c Memory used           : 29.54 MB
51.18/51.26	c CPU time              : 51.1982 s
51.18/51.26	c 
51.18/51.26	s SATISFIABLE
51.18/51.26	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1738131-1240835776/watcher-1738131-1240835776 -o /tmp/evaluation-result-1738131-1240835776/solver-1738131-1240835776 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1738131-1240835776.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.91 1.95 1.69 3/65 16084
/proc/meminfo: memFree=1628904/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=7604 CPUtime=0
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 247 0 0 0 0 0 0 0 20 0 1 0 111606709 7786496 231 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 1901 231 63 219 0 1679 0

[startup+0.0226 s]
/proc/loadavg: 1.91 1.95 1.69 3/65 16084
/proc/meminfo: memFree=1628904/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=8048 CPUtime=0.01
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 404 0 0 0 1 0 0 0 20 0 1 0 111606709 8241152 388 1992294400 4194304 5092341 548682068832 18446744073709551615 4219817 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 2012 388 87 219 0 1790 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8048

[startup+0.101609 s]
/proc/loadavg: 1.91 1.95 1.69 3/65 16084
/proc/meminfo: memFree=1628904/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=8048 CPUtime=0.09
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 527 0 0 0 9 0 0 0 20 0 1 0 111606709 8241152 436 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 2012 436 99 219 0 1790 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8048

[startup+0.301632 s]
/proc/loadavg: 1.91 1.95 1.69 3/65 16084
/proc/meminfo: memFree=1628904/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=8180 CPUtime=0.29
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 818 0 0 0 29 0 0 0 22 0 1 0 111606709 8376320 727 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 2045 727 100 219 0 1823 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8180

[startup+0.701678 s]
/proc/loadavg: 1.91 1.95 1.69 3/65 16084
/proc/meminfo: memFree=1628904/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=8740 CPUtime=0.69
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 1333 0 0 0 69 0 0 0 25 0 1 0 111606709 8949760 1242 1992294400 4194304 5092341 548682068832 18446744073709551615 4252265 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 2185 1242 100 219 0 1963 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8740

[startup+1.50277 s]
/proc/loadavg: 1.91 1.95 1.69 2/66 16085
/proc/meminfo: memFree=1624544/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=14704 CPUtime=1.49
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 2835 0 0 0 148 1 0 0 25 0 1 0 111606709 15056896 2018 1992294400 4194304 5092341 548682068832 18446744073709551615 4241101 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 3676 2018 100 219 0 3454 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14704

[startup+3.10195 s]
/proc/loadavg: 1.91 1.95 1.69 2/66 16085
/proc/meminfo: memFree=1619616/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=19892 CPUtime=3.09
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 4208 0 0 0 307 2 0 0 25 0 1 0 111606709 20369408 3391 1992294400 4194304 5092341 548682068832 18446744073709551615 4241256 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 4973 3391 100 219 0 4751 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 19892

[startup+6.30132 s]
/proc/loadavg: 1.84 1.94 1.68 2/66 16085
/proc/meminfo: memFree=1614944/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=19892 CPUtime=6.29
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 4419 0 0 0 627 2 0 0 25 0 1 0 111606709 20369408 3602 1992294400 4194304 5092341 548682068832 18446744073709551615 4241101 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 4973 3602 100 219 0 4751 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19892

[startup+12.701 s]
/proc/loadavg: 1.77 1.92 1.68 2/66 16085
/proc/meminfo: memFree=1613280/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=19892 CPUtime=12.69
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 4741 0 0 0 1266 3 0 0 25 0 1 0 111606709 20369408 3924 1992294400 4194304 5092341 548682068832 18446744073709551615 4241048 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 4973 3924 100 219 0 4751 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 19892

[startup+25.5015 s]
/proc/loadavg: 1.60 1.87 1.67 2/66 16085
/proc/meminfo: memFree=1610016/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=22504 CPUtime=25.48
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 9137 0 0 0 2544 4 0 0 25 0 1 0 111606709 23044096 4741 1992294400 4194304 5092341 548682068832 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 5626 4741 100 219 0 5404 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 22504

[startup+51.1014 s]
/proc/loadavg: 1.40 1.80 1.65 2/66 16085
/proc/meminfo: memFree=1602272/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=30248 CPUtime=51.08
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 11071 0 0 0 5103 5 0 0 25 0 1 0 111606709 30973952 6675 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 7562 6675 100 219 0 7340 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 30248

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

[startup+51.2014 s]
/proc/loadavg: 1.40 1.80 1.65 2/66 16085
/proc/meminfo: memFree=1602272/2055920 swapFree=4192952/4192956
[pid=16084] ppid=16082 vsize=30248 CPUtime=51.18
/proc/16084/stat : 16084 (minisat) R 16082 16084 15862 0 -1 4194304 11071 0 0 0 5113 5 0 0 25 0 1 0 111606709 30973952 6675 1992294400 4194304 5092341 548682068832 18446744073709551615 4241101 0 0 4096 3 0 0 0 17 1 0 0
/proc/16084/statm: 7562 6675 100 219 0 7340 0
Current children cumulated CPU time (s) 51.18
Current children cumulated vsize (KiB) 30248

Child status: 10
Real time (s): 51.2696
CPU time (s): 51.2542
CPU user time (s): 51.1982
CPU system time (s): 0.055991
CPU usage (%): 99.97
Max. virtual memory (cumulated for all children) (KiB): 30248

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.1982
system time used= 0.055991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11081
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= 2
involuntary context switches= 60

runsolver used 0.053991 second user time and 0.134979 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-27 14:36:16
IDJOB=1738131
IDBENCH=71801
IDSOLVER=546
FILE ID=node88/1738131-1240835776
PBS_JOBID= 9187533
Free space on /tmp= 66560 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738131-1240835776/watcher-1738131-1240835776 -o /tmp/evaluation-result-1738131-1240835776/solver-1738131-1240835776 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1738131-1240835776.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=1426938948

node88.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.229
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	: 5914.62
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		: 3000.229
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1629320 kB
Buffers:         63084 kB
Cached:         269500 kB
SwapCached:          4 kB
Active:         166652 kB
Inactive:       180256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1629320 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            1188 kB
Writeback:           0 kB
Mapped:          24052 kB
Slab:            65596 kB
Committed_AS:   324068 kB
PageTables:       1444 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= 66560 MiB
End job on node88 at 2009-04-27 14:37:07