Trace number 3095081

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
MPhaseSAT64 2011-03-03SAT 0.971851 0.972388

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
MD5SUMafacdefc4a366ba0b827e7e74ce8af4c
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 variables450
Number of clauses1917
Sum of the clauses size5751
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31917
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.89/0.97	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.89/0.97	c input CNF file=HOME/instance-3095081-1301757274.cnf 
0.89/0.97	c Clause#=1917  var#=450  ratio=4 
0.89/0.97	c Simplified clause#=1917 
0.89/0.97	c XOR_varElimination deleted var#=0 clauses#=1904 
0.89/0.97	c inative var#=0 
0.89/0.97	c free var#=432  
0.89/0.97	c local search on 
0.89/0.97	c A solution found by local search 
0.89/0.97	c unfixed var#=16 var#=450 
0.89/0.97	c verified 
0.89/0.97	c 
0.89/0.97	s SATISFIABLE
0.89/0.97	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 -55 -56 57 58 59 60 -61 -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 -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 
0.89/0.97	v 0
0.89/0.97	c 
0.89/0.97	c  Running time=0.969852

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-3095081-1301757274/watcher-3095081-1301757274 -o /tmp/evaluation-result-3095081-1301757274/solver-3095081-1301757274 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095081-1301757274.cnf 

running on 2 cores: 0,2

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: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=3152 CPUtime=0 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 373 0 0 0 0 0 0 0 25 0 1 0 287325862 3227648 311 33554432000 134512640 134761588 4294081168 18446744073709551615 11990524 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 788 311 237 61 0 91 0

[startup+0.0443321 s]
/proc/loadavg: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=3600 CPUtime=0.04 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 496 0 0 0 4 0 0 0 25 0 1 0 287325862 3686400 434 33554432000 134512640 134761588 4294081168 18446744073709551615 134636864 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 900 434 273 61 0 203 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3600

[startup+0.100346 s]
/proc/loadavg: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=3920 CPUtime=0.09 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 577 0 0 0 9 0 0 0 25 0 1 0 287325862 4014080 515 33554432000 134512640 134761588 4294081168 18446744073709551615 134636583 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 980 515 274 61 0 283 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3920

[startup+0.300328 s]
/proc/loadavg: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=4764 CPUtime=0.29 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 820 0 0 0 29 0 0 0 25 0 1 0 287325862 4878336 758 33554432000 134512640 134761588 4294081168 18446744073709551615 134748634 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 1191 758 274 61 0 494 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4764

[startup+0.700244 s]
/proc/loadavg: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=5460 CPUtime=0.69 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 1078 0 0 0 69 0 0 0 25 0 1 0 287325862 5591040 932 33554432000 134512640 134761588 4294081168 18446744073709551615 134747290 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 1365 932 274 61 0 668 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5460

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

[startup+0.900212 s]
/proc/loadavg: 4.03 3.96 3.69 4/189 19665
/proc/meminfo: memFree=20943072/32951124 swapFree=67111528/67111528
[pid=19665] ppid=19663 vsize=5780 CPUtime=0.89 cores=0,2
/proc/19665/stat : 19665 (MPhaseSAT64) R 19663 19665 19384 0 -1 4202496 1158 0 0 0 89 0 0 0 25 0 1 0 287325862 5918720 980 33554432000 134512640 134761588 4294081168 18446744073709551615 134747223 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19665/statm: 1445 980 274 61 0 748 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 5780

Child status: 10
Real time (s): 0.972388
CPU time (s): 0.971851
CPU user time (s): 0.968852
CPU system time (s): 0.002999
CPU usage (%): 99.9448
Max. virtual memory (cumulated for all children) (KiB): 5780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.968852
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= 1171
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= 6
involuntary context switches= 15

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-02 17:14:34
IDJOB=3095081
IDBENCH=82963
IDSOLVER=1521
FILE ID=node130/3095081-1301757274
RUNJOBID= node130-1301757096-19402
PBS_JOBID= 12841075
Free space on /tmp= 71988 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095081-1301757274/watcher-3095081-1301757274 -o /tmp/evaluation-result-3095081-1301757274/solver-3095081-1301757274 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095081-1301757274.cnf

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

MD5SUM BENCH= afacdefc4a366ba0b827e7e74ce8af4c
RANDOM SEED=209937550

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.81
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20943212 kB
Buffers:        357104 kB
Cached:       11307068 kB
SwapCached:          0 kB
Active:        7244196 kB
Inactive:      4503716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20943212 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             732 kB
Writeback:           0 kB
AnonPages:       83736 kB
Mapped:          17260 kB
Slab:           196416 kB
PageTables:       5280 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269336 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= 71988 MiB
End job on node130 at 2011-04-02 17:14:35