Trace number 3153959

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
sattime2011 2011-03-02SAT 0.042993 0.0458859

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
MD5SUM52f4c2549736f42ae4f40e4dd45d91d0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.04	c 0 clauses are redundant and removed
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.04	c initial seed is 1534813942
0.00/0.04	c try=1 flip j=90613 walk=79235 seed 1534813959
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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 -465 -466 467 -468 -469 470 -471 472 473 474 475 -476 477 478 -479 -480 -481 482 -483 -484 485 -486 -487 -488 -489 490 491 492 493 -494 -495 -496 -497 -498 -499 -500 
0.00/0.04	v 0 
0.00/0.04	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3153959-1301685101/watcher-3153959-1301685101 -o /tmp/evaluation-result-3153959-1301685101/solver-3153959-1301685101 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153959-1301685101.cnf 1534810485 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.94 1.99 3.08 5/187 8568
/proc/meminfo: memFree=21174116/32951132 swapFree=67111528/67111528
[pid=8568] ppid=8566 vsize=1185716 CPUtime=0 cores=5,7
/proc/8568/stat : 8568 (sattime2011) R 8566 8568 7195 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 280108751 1214173184 309 33554432000 4194304 4230460 140735023900080 18446744073709551615 4223068 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8568/statm: 296429 309 117 9 0 293586 0

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

Child status: 10
Real time (s): 0.0458859
CPU time (s): 0.042993
CPU user time (s): 0.042993
CPU system time (s): 0
CPU usage (%): 93.6955
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.042993
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 375
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= 0

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 21:11:41
IDJOB=3153959
IDBENCH=83066
IDSOLVER=1563
FILE ID=node128/3153959-1301685101
RUNJOBID= node128-1301685101-8502
PBS_JOBID= 12840569
Free space on /tmp= 70968 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153959-1301685101/watcher-3153959-1301685101 -o /tmp/evaluation-result-3153959-1301685101/solver-3153959-1301685101 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153959-1301685101.cnf 1534810485

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 52f4c2549736f42ae4f40e4dd45d91d0
RANDOM SEED=1534810485

node128.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21174272 kB
Buffers:        333880 kB
Cached:       11100948 kB
SwapCached:          0 kB
Active:        7928868 kB
Inactive:      3573616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21174272 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31192 kB
Writeback:           0 kB
AnonPages:       66788 kB
Mapped:          15404 kB
Slab:           212520 kB
PageTables:       5208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3799448 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70960 MiB
End job on node128 at 2011-04-01 21:11:41