Trace number 3153970

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 0.233964 0.237198

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
MD5SUMc8e689035f3179f449d681054feb5bd2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.19/0.23	c 0 clauses are redundant and removed
0.19/0.23	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.23	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.23	c initial seed is 1942037896
0.19/0.23	c try=1 flip j=522037 walk=452241 seed 1942037913
0.19/0.23	c A solution is found
0.19/0.23	s SATISFIABLE
0.19/0.23	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 
0.19/0.23	v 0 
0.19/0.23	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-3153970-1301685127/watcher-3153970-1301685127 -o /tmp/evaluation-result-3153970-1301685127/solver-3153970-1301685127 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153970-1301685127.cnf 1942034439 

running on 2 cores: 4,6

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: 2.85 2.71 3.34 5/189 2586
/proc/meminfo: memFree=24562372/32951124 swapFree=67110456/67111528
[pid=2586] ppid=2584 vsize=1185452 CPUtime=0 cores=4,6
/proc/2586/stat : 2586 (sattime2011) R 2584 2586 1415 0 -1 4194304 205 0 0 0 0 0 0 0 25 0 1 0 358743361 1213902848 148 33554432000 4194304 4230460 140736807504896 18446744073709551615 224284925696 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2586/statm: 296363 149 100 9 0 293520 0

[startup+0.0959021 s]
/proc/loadavg: 2.85 2.71 3.34 5/189 2586
/proc/meminfo: memFree=24562372/32951124 swapFree=67110456/67111528
[pid=2586] ppid=2584 vsize=1185716 CPUtime=0.09 cores=4,6
/proc/2586/stat : 2586 (sattime2011) R 2584 2586 1415 0 -1 4202496 369 0 0 0 9 0 0 0 25 0 1 0 358743361 1214173184 310 33554432000 4194304 4230460 140736807504896 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2586/statm: 296429 310 117 9 0 293586 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185716

[startup+0.100903 s]
/proc/loadavg: 2.85 2.71 3.34 5/189 2586
/proc/meminfo: memFree=24562372/32951124 swapFree=67110456/67111528
[pid=2586] ppid=2584 vsize=1185716 CPUtime=0.09 cores=4,6
/proc/2586/stat : 2586 (sattime2011) R 2584 2586 1415 0 -1 4202496 369 0 0 0 9 0 0 0 25 0 1 0 358743361 1214173184 310 33554432000 4194304 4230460 140736807504896 18446744073709551615 4221679 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2586/statm: 296429 310 117 9 0 293586 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185716

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

[startup+0.200886 s]
/proc/loadavg: 2.85 2.71 3.34 5/189 2586
/proc/meminfo: memFree=24562372/32951124 swapFree=67110456/67111528
[pid=2586] ppid=2584 vsize=1185716 CPUtime=0.19 cores=4,6
/proc/2586/stat : 2586 (sattime2011) R 2584 2586 1415 0 -1 4202496 369 0 0 0 19 0 0 0 25 0 1 0 358743361 1214173184 310 33554432000 4194304 4230460 140736807504896 18446744073709551615 4223414 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2586/statm: 296429 310 117 9 0 293586 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.237198
CPU time (s): 0.233964
CPU user time (s): 0.233964
CPU system time (s): 0
CPU usage (%): 98.6366
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.233964
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= 373
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= 1

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-01 21:12:07
IDJOB=3153970
IDBENCH=83077
IDSOLVER=1563
FILE ID=node118/3153970-1301685127
RUNJOBID= node118-1301685070-2461
PBS_JOBID= 12840579
Free space on /tmp= 71004 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153970-1301685127/watcher-3153970-1301685127 -o /tmp/evaluation-result-3153970-1301685127/solver-3153970-1301685127 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153970-1301685127.cnf 1942034439

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

MD5SUM BENCH= c8e689035f3179f449d681054feb5bd2
RANDOM SEED=1942034439

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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	: 5332.75
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      24562652 kB
Buffers:        267936 kB
Cached:        7792552 kB
SwapCached:        640 kB
Active:        4779756 kB
Inactive:      3351768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24562652 kB
SwapTotal:    67111528 kB
SwapFree:     67110456 kB
Dirty:            7804 kB
Writeback:           0 kB
AnonPages:       70668 kB
Mapped:          15444 kB
Slab:           193180 kB
PageTables:       5516 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3797244 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70996 MiB
End job on node118 at 2011-04-01 21:12:07