Trace number 1519258

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
picosat 913SAT 2.80557 2.80541

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
MD5SUM53f64d3919c2bd6a89e2520e3c5780bd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1519258-1238309284.cnf
0.00/0.00	c parsed header 'p cnf 360 1530'
0.00/0.00	c initialized 360 variables
0.00/0.00	c found 1530 non trivial clauses
0.00/0.00	c
0.00/0.00	c random number generator seed 0
0.00/0.00	c 
0.00/0.00	c  seconds     variables   original    learned     agility
0.00/0.00	c         level        used      conflicts    limit          MB
0.00/0.00	c 
0.00/0.00	c s   0.0   0.0   360   0.0  1530     0     0     0   0.0   0.1 
0.00/0.00	c 
0.00/0.00	c initial reduction limit 765 clauses
0.00/0.00	c 
0.00/0.00	c +   0.0  32.4   360  83.1  1530   100   100   841  11.8   0.1 
0.00/0.00	c R   0.0  32.4   360  83.1  1530   100   100   841  11.8   0.1 
0.00/0.00	c +   0.0  27.1   360  95.8  1530   250   250   925  21.0   0.1 
0.00/0.01	c N   0.0  25.6   360  98.1  1530   402   402   925  26.0   0.1 
0.00/0.01	c +   0.0  24.9   360  98.3  1530   475   475  1017  26.5   0.1 
0.00/0.02	c +   0.0  22.7   360  98.6  1530   812   812  1118  29.5   0.1 
0.00/0.03	c N   0.0  21.4   360  98.9  1530  1207   643  1118  28.1   0.1 
0.03/0.03	c +   0.0  21.1   360  98.9  1530  1317   753  1229  29.3   0.2 
0.03/0.06	c +   0.1  20.1   360  99.2  1530  2074   891  1351  28.9   0.2 
0.03/0.09	c +   0.1  19.4   360  99.2  1530  3209  1343  1486  28.4   0.2 
0.03/0.09	c N   0.1  19.4   360  99.2  1530  3215  1349  1486  28.6   0.2 
0.10/0.15	c +   0.2  19.7   360  99.2  1530  4911   794  1634  30.4   0.2 
0.20/0.23	c +   0.2  19.6   360  99.2  1530  7464   871  1797  27.4   0.2 
0.20/0.25	c N   0.3  19.5   360  99.2  1530  8029  1436  1797  28.9   0.2 
0.30/0.36	c +   0.4  19.3   360  99.2  1530 11293  1073  1976  28.8   0.2 
0.50/0.56	c +   0.6  19.0   360  99.2  1530 17036  1848  2173  27.9   0.2 
0.59/0.64	c N   0.6  18.9   360  99.2  1530 19259  1885  2173  28.7   0.3 
0.79/0.86	c +   0.9  18.5   360  99.2  1530 25650  1715  2390  27.6   0.3 
1.29/1.33	c +   1.3  18.4   360  99.2  1530 38571  1430  2629  27.8   0.2 
1.49/1.56	c N   1.6  18.3   360  99.2  1530 44895  2466  2629  26.3   0.3 
1.49/1.56	c 
1.49/1.56	c  seconds     variables   original    learned     agility
1.49/1.56	c         level        used      conflicts    limit          MB
1.49/1.56	c 
1.99/2.06	c +   2.1  18.2   360  99.2  1530 57952  2322  2891  26.6   0.3 
2.79/2.80	c 1   2.8  18.0   360  99.2  1530 77288  2770  2891  27.7   0.3 
2.79/2.80	c 
2.79/2.80	c  seconds     variables   original    learned     agility
2.79/2.80	c         level        used      conflicts    limit          MB
2.79/2.80	c 
2.79/2.80	s SATISFIABLE
2.79/2.80	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
2.79/2.80	v 25 26 27 28 -29 30 31 32 -33 -34 -35 -36 37 38 -39 40 41 42 43 -44 -45 46 -47
2.79/2.80	v -48 49 50 -51 -52 -53 54 -55 56 57 -58 -59 60 61 62 -63 -64 -65 -66 67 -68
2.79/2.80	v -69 -70 -71 -72 -73 74 -75 -76 -77 -78 -79 -80 -81 -82 83 -84 85 -86 87 -88
2.79/2.80	v -89 -90 91 -92 -93 -94 -95 -96 -97 98 -99 100 -101 102 103 104 -105 -106 -107
2.79/2.80	v -108 -109 110 -111 112 113 114 115 -116 -117 -118 119 -120 121 -122 123 124
2.79/2.80	v -125 -126 127 128 -129 -130 -131 132 133 134 -135 -136 -137 138 139 -140 -141
2.79/2.80	v 142 143 144 -145 -146 147 -148 149 -150 151 -152 153 -154 -155 156 -157 158
2.79/2.80	v 159 -160 161 -162 163 164 165 -166 -167 -168 169 -170 171 -172 173 -174 -175
2.79/2.80	v 176 177 -178 179 -180 -181 -182 -183 184 -185 186 187 188 189 -190 191 -192
2.79/2.80	v 193 -194 -195 -196 -197 -198 199 200 201 -202 203 -204 -205 206 -207 208 -209
2.79/2.80	v -210 211 212 -213 214 -215 -216 -217 218 -219 220 -221 222 223 224 -225 -226
2.79/2.80	v -227 228 -229 230 231 232 -233 -234 -235 -236 237 -238 239 -240 241 242 243
2.79/2.80	v -244 245 -246 -247 -248 -249 -250 251 -252 -253 -254 -255 -256 257 258 259
2.79/2.80	v -260 -261 262 263 264 -265 -266 267 268 -269 -270 271 272 -273 -274 275 276
2.79/2.80	v 277 -278 -279 280 -281 282 283 284 -285 286 287 -288 -289 290 -291 -292 -293
2.79/2.80	v -294 -295 -296 -297 298 -299 300 -301 -302 -303 304 305 306 307 308 -309 -310
2.79/2.80	v 311 -312 313 314 315 316 -317 318 319 320 -321 -322 323 324 325 326 -327 328
2.79/2.80	v 329 330 -331 -332 -333 334 335 336 337 338 339 340 341 342 -343 344 345 -346
2.79/2.80	v -347 348 -349 -350 351 352 -353 -354 -355 -356 357 358 -359 360 0
2.79/2.80	c
2.79/2.80	c 0 iterations
2.79/2.80	c 2 restarts
2.79/2.80	c 0 failed literals
2.79/2.80	c 77288 conflicts
2.79/2.80	c 92075 decisions
2.79/2.80	c 0 fixed variables
2.79/2.80	c 1502773 learned literals
2.79/2.80	c 20.6% deleted literals
2.79/2.80	c 5656847 propagations
2.79/2.80	c 99.2% variables used
2.79/2.80	c 2.8 seconds in library
2.79/2.80	c 2.0 megaprops/second
2.79/2.80	c 1 simplifications
2.79/2.80	c 64 reductions
2.79/2.80	c 7.0 MB recycled
2.79/2.80	c 0.4 MB maximally allocated
2.79/2.80	c 2.8 seconds total run time

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519258-1238309284/watcher-1519258-1238309284 -o /tmp/evaluation-result-1519258-1238309284/solver-1519258-1238309284 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1519258-1238309284.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: 0.99 0.98 0.99 3/65 10463
/proc/meminfo: memFree=1315168/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=780 CPUtime=0
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 115 0 0 0 0 0 0 0 18 0 1 0 1103590692 798720 100 1992294400 134512640 135137933 4294956240 18446744073709551615 134548913 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 195 100 69 152 0 41 0

[startup+0.036333 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 10463
/proc/meminfo: memFree=1315168/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=912 CPUtime=0.03
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 144 0 0 0 3 0 0 0 18 0 1 0 1103590692 933888 129 1992294400 134512640 135137933 4294956240 18446744073709551615 134689534 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 228 129 69 152 0 74 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 912

[startup+0.101333 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 10463
/proc/meminfo: memFree=1315168/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=912 CPUtime=0.1
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 151 0 0 0 10 0 0 0 18 0 1 0 1103590692 933888 136 1992294400 134512640 135137933 4294956240 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 228 136 69 152 0 74 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 912

[startup+0.301369 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 10463
/proc/meminfo: memFree=1315168/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1044 CPUtime=0.3
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 162 0 0 0 30 0 0 0 19 0 1 0 1103590692 1069056 147 1992294400 134512640 135137933 4294956240 18446744073709551615 134548870 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 261 147 69 152 0 107 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1044

[startup+0.70144 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 10463
/proc/meminfo: memFree=1315168/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1044 CPUtime=0.69
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 174 0 0 0 69 0 0 0 22 0 1 0 1103590692 1069056 159 1992294400 134512640 135137933 4294956240 18446744073709551615 134548994 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 261 159 69 152 0 107 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1044

[startup+1.50158 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 10464
/proc/meminfo: memFree=1314712/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1044 CPUtime=1.49
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 184 0 0 0 149 0 0 0 25 0 1 0 1103590692 1069056 169 1992294400 134512640 135137933 4294956240 18446744073709551615 134522808 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 261 169 69 152 0 107 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1044

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

[startup+2.30172 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 10464
/proc/meminfo: memFree=1314520/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1172 CPUtime=2.29
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 193 0 0 0 229 0 0 0 25 0 1 0 1103590692 1200128 178 1992294400 134512640 135137933 4294956240 18446744073709551615 134522672 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 293 178 69 152 0 139 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1172

[startup+2.70179 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 10464
/proc/meminfo: memFree=1314520/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1172 CPUtime=2.69
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 194 0 0 0 269 0 0 0 25 0 1 0 1103590692 1200128 179 1992294400 134512640 135137933 4294956240 18446744073709551615 134548941 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 293 179 69 152 0 139 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 1172

[startup+2.80181 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 10464
/proc/meminfo: memFree=1314520/2055920 swapFree=4177692/4192956
[pid=10463] ppid=10461 vsize=1172 CPUtime=2.79
/proc/10463/stat : 10463 (picosat) R 10461 10463 10083 0 -1 4194304 194 0 0 0 279 0 0 0 25 0 1 0 1103590692 1200128 179 1992294400 134512640 135137933 4294956240 18446744073709551615 134552443 0 0 4096 0 0 0 0 17 1 0 0
/proc/10463/statm: 293 179 69 152 0 139 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 1172

Child status: 10
Real time (s): 2.80541
CPU time (s): 2.80557
CPU user time (s): 2.80257
CPU system time (s): 0.002999
CPU usage (%): 100.006
Max. virtual memory (cumulated for all children) (KiB): 1176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.80257
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 196
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= 4

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-03-29 08:48:04
IDJOB=1519258
IDBENCH=70748
IDSOLVER=506
FILE ID=node56/1519258-1238309284
PBS_JOBID= 9061046
Free space on /tmp= 103016 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519258-1238309284/watcher-1519258-1238309284 -o /tmp/evaluation-result-1519258-1238309284/solver-1519258-1238309284 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1519258-1238309284.cnf

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

MD5SUM BENCH= 53f64d3919c2bd6a89e2520e3c5780bd
RANDOM SEED=2045455619

node56.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		: 3000.256
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		: 3000.256
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:       1315584 kB
Buffers:         99408 kB
Cached:         543604 kB
SwapCached:       9040 kB
Active:         189116 kB
Inactive:       464360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1315584 kB
SwapTotal:     4192956 kB
SwapFree:      4177692 kB
Dirty:             716 kB
Writeback:           0 kB
Mapped:          16168 kB
Slab:            72704 kB
Committed_AS:  2491176 kB
PageTables:       1472 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= 103012 MiB
End job on node56 at 2009-03-29 08:48:07