Trace number 1519318

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 2.20166 2.20206

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
MD5SUM827e988c6cf21e8a9c90f9f21d3beb6e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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-1519318-1238309719.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  38.9   360  83.6  1530   100   100   841  10.4   0.1 
0.00/0.00	c R   0.0  38.9   360  83.6  1530   100   100   841  10.4   0.1 
0.00/0.00	c +   0.0  28.4   360  94.7  1530   250   250   925  22.6   0.1 
0.00/0.01	c N   0.0  25.4   360  96.9  1530   400   400   925  26.1   0.1 
0.00/0.01	c +   0.0  24.3   360  96.9  1530   475   475  1017  27.8   0.1 
0.00/0.02	c +   0.0  22.6   360  98.6  1530   812   812  1118  27.8   0.1 
0.00/0.03	c N   0.0  21.4   360  99.4  1530  1203   641  1118  27.7   0.1 
0.00/0.03	c +   0.0  21.2   360  99.4  1530  1317   755  1229  28.3   0.2 
0.00/0.05	c +   0.1  20.1   360  99.4  1530  2074   894  1351  28.2   0.2 
0.00/0.09	c +   0.1  19.3   360  99.4  1530  3209  1352  1486  28.9   0.2 
0.00/0.09	c N   0.1  19.3   360  99.4  1530  3210  1353  1486  29.0   0.2 
0.10/0.14	c +   0.1  18.7   360  99.4  1530  4911   811  1634  27.2   0.1 
0.20/0.21	c +   0.2  18.3   360  99.4  1530  7464   899  1797  28.3   0.2 
0.20/0.23	c N   0.2  18.3   360  99.4  1530  8026  1461  1797  27.3   0.2 
0.30/0.33	c +   0.3  17.8   360  99.4  1530 11293  1110  1976  28.1   0.2 
0.50/0.51	c +   0.5  17.1   360  99.4  1530 17036  1884  2173  28.9   0.2 
0.50/0.58	c N   0.6  16.8   360  99.4  1530 19248  1907  2173  29.4   0.2 
0.70/0.79	c +   0.8  16.4   360  99.4  1530 25650  1747  2390  27.8   0.2 
1.20/1.22	c +   1.2  16.1   360  99.4  1530 38571  1454  2629  26.8   0.2 
1.40/1.43	c N   1.4  15.9   360  99.4  1530 44924  2518  2629  27.7   0.3 
1.40/1.43	c 
1.40/1.43	c  seconds     variables   original    learned     agility
1.40/1.43	c         level        used      conflicts    limit          MB
1.40/1.43	c 
1.80/1.88	c +   1.9  15.7   360  99.4  1530 57952  2327  2891  24.6   0.3 
2.10/2.20	c 1   2.2  15.7   360  99.4  1530 66613  2265  2891  24.0   0.3 
2.10/2.20	c 
2.10/2.20	c  seconds     variables   original    learned     agility
2.10/2.20	c         level        used      conflicts    limit          MB
2.10/2.20	c 
2.10/2.20	s SATISFIABLE
2.10/2.20	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
2.10/2.20	v -26 -27 -28 -29 -30 31 -32 33 -34 -35 -36 -37 38 39 40 41 42 -43 44 45 46 47
2.10/2.20	v -48 -49 50 51 -52 -53 -54 -55 56 -57 -58 -59 60 -61 62 -63 -64 65 -66 67 -68
2.10/2.20	v 69 70 -71 72 73 -74 -75 -76 -77 -78 79 -80 81 -82 83 -84 -85 -86 -87 -88 89
2.10/2.20	v -90 91 -92 93 -94 -95 96 -97 98 99 100 101 -102 -103 104 105 106 107 108 -109
2.10/2.20	v -110 -111 112 -113 114 -115 -116 117 -118 119 -120 -121 122 123 124 -125 126
2.10/2.20	v -127 -128 129 -130 -131 132 133 -134 -135 136 137 -138 139 140 141 142 143
2.10/2.20	v -144 -145 -146 147 -148 -149 -150 151 -152 153 -154 155 156 -157 -158 159
2.10/2.20	v -160 161 -162 163 164 -165 166 -167 168 -169 -170 -171 -172 173 -174 175 176
2.10/2.20	v -177 178 -179 -180 -181 182 -183 184 185 -186 -187 188 189 -190 191 192 -193
2.10/2.20	v -194 195 196 -197 198 -199 -200 -201 202 -203 204 -205 206 -207 -208 209 -210
2.10/2.20	v 211 212 -213 -214 215 216 -217 -218 219 -220 221 222 -223 -224 225 -226 -227
2.10/2.20	v -228 -229 -230 231 -232 -233 -234 235 -236 -237 -238 -239 -240 -241 242 -243
2.10/2.20	v -244 245 246 247 248 -249 250 251 252 253 -254 -255 -256 -257 258 -259 260
2.10/2.20	v -261 -262 263 -264 -265 -266 267 -268 269 270 -271 -272 -273 274 275 -276
2.10/2.20	v -277 -278 279 280 -281 282 -283 -284 285 286 -287 -288 -289 -290 291 292 -293
2.10/2.20	v -294 -295 296 -297 -298 299 -300 -301 302 303 304 305 -306 -307 308 309 -310
2.10/2.20	v -311 312 -313 314 -315 -316 317 318 319 320 -321 -322 -323 -324 -325 326 -327
2.10/2.20	v -328 -329 330 331 332 -333 -334 335 336 -337 -338 -339 340 -341 -342 -343 344
2.10/2.20	v 345 346 -347 -348 -349 -350 351 352 -353 354 -355 356 357 358 359 360 0
2.10/2.20	c
2.10/2.20	c 0 iterations
2.10/2.20	c 2 restarts
2.10/2.20	c 0 failed literals
2.10/2.20	c 66613 conflicts
2.10/2.20	c 79423 decisions
2.10/2.20	c 0 fixed variables
2.10/2.20	c 1181723 learned literals
2.10/2.20	c 25.1% deleted literals
2.10/2.20	c 4872026 propagations
2.10/2.20	c 99.4% variables used
2.10/2.20	c 2.2 seconds in library
2.10/2.20	c 2.2 megaprops/second
2.10/2.20	c 1 simplifications
2.10/2.20	c 57 reductions
2.10/2.20	c 5.6 MB recycled
2.10/2.20	c 0.4 MB maximally allocated
2.10/2.20	c 2.2 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-1519318-1238309719/watcher-1519318-1238309719 -o /tmp/evaluation-result-1519318-1238309719/solver-1519318-1238309719 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1519318-1238309719.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: 1.00 1.00 1.00 3/64 6980
/proc/meminfo: memFree=937304/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=780 CPUtime=0
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 116 0 0 0 0 0 0 0 18 0 1 0 1103637381 798720 101 1992294400 134512640 135137933 4294956240 18446744073709551615 134689534 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 195 101 69 152 0 41 0

[startup+0.095749 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6980
/proc/meminfo: memFree=937304/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=912 CPUtime=0.09
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 150 0 0 0 9 0 0 0 18 0 1 0 1103637381 933888 135 1992294400 134512640 135137933 4294956240 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 228 135 69 152 0 74 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 912

[startup+0.101748 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6980
/proc/meminfo: memFree=937304/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=912 CPUtime=0.1
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 150 0 0 0 10 0 0 0 18 0 1 0 1103637381 933888 135 1992294400 134512640 135137933 4294956240 18446744073709551615 134552979 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 228 135 69 152 0 74 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 912

[startup+0.301781 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6980
/proc/meminfo: memFree=937304/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=1044 CPUtime=0.3
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 160 0 0 0 30 0 0 0 19 0 1 0 1103637381 1069056 145 1992294400 134512640 135137933 4294956240 18446744073709551615 134548734 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 261 145 69 152 0 107 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1044

[startup+0.701844 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6980
/proc/meminfo: memFree=937304/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=1044 CPUtime=0.7
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 171 0 0 0 70 0 0 0 23 0 1 0 1103637381 1069056 156 1992294400 134512640 135137933 4294956240 18446744073709551615 134548844 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 261 156 69 152 0 107 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1044

[startup+1.50197 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6981
/proc/meminfo: memFree=936912/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=1044 CPUtime=1.5
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 185 0 0 0 150 0 0 0 25 0 1 0 1103637381 1069056 170 1992294400 134512640 135137933 4294956240 18446744073709551615 134527791 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 261 170 69 152 0 107 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1044

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

[startup+1.90104 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6981
/proc/meminfo: memFree=936912/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=1044 CPUtime=1.89
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 191 0 0 0 189 0 0 0 25 0 1 0 1103637381 1069056 176 1992294400 134512640 135137933 4294956240 18446744073709551615 134553618 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 261 176 69 152 0 107 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1044

[startup+2.10107 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 6981
/proc/meminfo: memFree=936656/2055920 swapFree=4178216/4192956
[pid=6980] ppid=6978 vsize=1172 CPUtime=2.1
/proc/6980/stat : 6980 (picosat) R 6978 6980 6543 0 -1 4194304 192 0 0 0 210 0 0 0 25 0 1 0 1103637381 1200128 177 1992294400 134512640 135137933 4294956240 18446744073709551615 134527692 0 0 4096 0 0 0 0 17 0 0 0
/proc/6980/statm: 293 177 69 152 0 139 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 1172

Child status: 10
Real time (s): 2.20206
CPU time (s): 2.20166
CPU user time (s): 2.19967
CPU system time (s): 0.001999
CPU usage (%): 99.9819
Max. virtual memory (cumulated for all children) (KiB): 1172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.19966
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= 194
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= 5

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node26 at 2009-03-29 08:55:19
IDJOB=1519318
IDBENCH=70753
IDSOLVER=506
FILE ID=node26/1519318-1238309719
PBS_JOBID= 9061040
Free space on /tmp= 66180 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519318-1238309719/watcher-1519318-1238309719 -o /tmp/evaluation-result-1519318-1238309719/solver-1519318-1238309719 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1519318-1238309719.cnf

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

MD5SUM BENCH= 827e988c6cf21e8a9c90f9f21d3beb6e
RANDOM SEED=1530934349

node26.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		: 3000.261
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		: 3000.261
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:        937784 kB
Buffers:         88560 kB
Cached:         932576 kB
SwapCached:       8520 kB
Active:         158604 kB
Inactive:       872500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        937784 kB
SwapTotal:     4192956 kB
SwapFree:      4178216 kB
Dirty:             728 kB
Writeback:           0 kB
Mapped:          15620 kB
Slab:            73132 kB
Committed_AS:  2819012 kB
PageTables:       1372 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= 66180 MiB
End job on node26 at 2009-03-29 08:55:21