Trace number 3095184

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 0.899862 0.900083

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 

0.79/0.89	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.89	c input CNF file=HOME/instance-3095184-1301759761.cnf 
0.79/0.89	c Clause#=2130  var#=500  ratio=4 
0.79/0.89	c Simplified clause#=2130 
0.79/0.89	c XOR_varElimination deleted var#=0 clauses#=2122 
0.79/0.89	c inative var#=0 
0.79/0.89	c free var#=479  
0.79/0.89	c local search on 
0.79/0.89	c A solution found by local search 
0.79/0.89	c unfixed var#=19 var#=500 
0.79/0.89	c verified 
0.79/0.89	c 
0.79/0.89	s SATISFIABLE
0.79/0.89	v 1 2 -3 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 -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 -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 -249 251 252 253 -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 
0.79/0.89	v 0
0.79/0.89	c 
0.79/0.89	c  Running time=0.897864

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-3095184-1301759761/watcher-3095184-1301759761 -o /tmp/evaluation-result-3095184-1301759761/solver-3095184-1301759761 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095184-1301759761.cnf 

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: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=3160 CPUtime=0 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 376 0 0 0 0 0 0 0 25 0 1 0 287576499 3235840 314 33554432000 134512640 134761588 4290851296 18446744073709551615 134576310 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 790 314 237 61 0 93 0

[startup+0.08934 s]
/proc/loadavg: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=3908 CPUtime=0.08 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 581 0 0 0 8 0 0 0 25 0 1 0 287576499 4001792 519 33554432000 134512640 134761588 4290851296 18446744073709551615 134747265 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 977 519 274 61 0 280 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3908

[startup+0.100327 s]
/proc/loadavg: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=4068 CPUtime=0.09 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 613 0 0 0 9 0 0 0 25 0 1 0 287576499 4165632 551 33554432000 134512640 134761588 4290851296 18446744073709551615 134672895 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 1017 551 274 61 0 320 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4068

[startup+0.300289 s]
/proc/loadavg: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=4648 CPUtime=0.29 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 790 0 0 0 29 0 0 0 25 0 1 0 287576499 4759552 728 33554432000 134512640 134761588 4290851296 18446744073709551615 134748468 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 1162 728 274 61 0 465 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4648

[startup+0.700222 s]
/proc/loadavg: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=5556 CPUtime=0.69 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 1081 0 0 0 69 0 0 0 25 0 1 0 287576499 5689344 955 33554432000 134512640 134761588 4290851296 18446744073709551615 134747351 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 1389 955 274 61 0 692 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5556

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

[startup+0.800201 s]
/proc/loadavg: 4.00 4.00 3.95 4/189 8878
/proc/meminfo: memFree=22534960/32951124 swapFree=67111528/67111528
[pid=8878] ppid=8876 vsize=5556 CPUtime=0.79 cores=4,6
/proc/8878/stat : 8878 (MPhaseSAT64) R 8876 8878 8310 0 -1 4202496 1081 0 0 0 79 0 0 0 25 0 1 0 287576499 5689344 955 33554432000 134512640 134761588 4290851296 18446744073709551615 134747069 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8878/statm: 1389 955 274 61 0 692 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5556

Child status: 10
Real time (s): 0.900083
CPU time (s): 0.899862
CPU user time (s): 0.898863
CPU system time (s): 0.000999
CPU usage (%): 99.9754
Max. virtual memory (cumulated for all children) (KiB): 5556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.898863
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1159
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= 1

runsolver used 0.003999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node106 at 2011-04-02 17:56:01
IDJOB=3095184
IDBENCH=83066
IDSOLVER=1521
FILE ID=node106/3095184-1301759761
RUNJOBID= node106-1301757136-8329
PBS_JOBID= 12841082
Free space on /tmp= 71520 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095184-1301759761/watcher-3095184-1301759761 -o /tmp/evaluation-result-3095184-1301759761/solver-3095184-1301759761 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095184-1301759761.cnf

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

MD5SUM BENCH= 52f4c2549736f42ae4f40e4dd45d91d0
RANDOM SEED=48781011

node106.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		: 2666.830
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	: 5333.66
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		: 2666.830
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	: 5226.20
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		: 2666.830
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		: 2666.830
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	: 5332.82
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		: 2666.830
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	: 5332.74
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22535116 kB
Buffers:        339844 kB
Cached:        9732912 kB
SwapCached:          0 kB
Active:        6730668 kB
Inactive:      3422736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22535116 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             936 kB
Writeback:           0 kB
AnonPages:       80424 kB
Mapped:          17012 kB
Slab:           199740 kB
PageTables:       5320 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   268780 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= 71520 MiB
End job on node106 at 2011-04-02 17:56:02