Trace number 3095767

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
MPhaseSAT_M 2011-02-16SAT 1.02184 1.02351

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S840902310-084.SATISFIABLE.cnf
MD5SUM02c45b007aaa35525677ccadd4298d97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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 

0.99/1.02	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.99/1.02	c input CNF file=HOME/instance-3095767-1301758522.cnf 
0.99/1.02	c Clause#=2130  var#=500  ratio=4 
0.99/1.02	c Simplified clause#=2130 
0.99/1.02	c XOR_varElimination deleted var#=0 clauses#=2116 
0.99/1.02	c inative var#=0 
0.99/1.02	c free var#=485  
0.99/1.02	c local search on 
0.99/1.02	c A solution found by local search 
0.99/1.02	c unfixed var#=13 var#=500 
0.99/1.02	c verified 
0.99/1.02	c 
0.99/1.02	s SATISFIABLE
0.99/1.02	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 -285 287 -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 -487 488 -489 490 491 -492 493 494 -495 -496 497 -498 499 -500 
0.99/1.02	v 0
0.99/1.02	c 
0.99/1.02	c  Running time=1.020845

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-3095767-1301758522/watcher-3095767-1301758522 -o /tmp/evaluation-result-3095767-1301758522/solver-3095767-1301758522 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095767-1301758522.cnf 

running on 2 cores: 1,3

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: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=3232 CPUtime=0 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 377 0 0 0 0 0 0 0 25 0 1 0 366082826 3309568 316 33554432000 134512640 134829744 4289838928 18446744073709551615 134559389 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 808 316 237 78 0 94 0

[startup+0.103164 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=3780 CPUtime=0.1 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 522 0 0 0 10 0 0 0 25 0 1 0 366082826 3870720 461 33554432000 134512640 134829744 4289838928 18446744073709551615 134669775 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 945 461 271 78 0 231 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3780

[startup+0.201139 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=3912 CPUtime=0.19 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 563 0 0 0 19 0 0 0 25 0 1 0 366082826 4005888 502 33554432000 134512640 134829744 4289838928 18446744073709551615 134722615 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 978 502 271 78 0 264 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3912

[startup+0.301125 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=3912 CPUtime=0.29 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 574 0 0 0 29 0 0 0 25 0 1 0 366082826 4005888 513 33554432000 134512640 134829744 4289838928 18446744073709551615 134661348 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 978 513 271 78 0 264 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3912

[startup+0.701049 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=4308 CPUtime=0.69 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 655 0 0 0 69 0 0 0 25 0 1 0 366082826 4411392 594 33554432000 134512640 134829744 4289838928 18446744073709551615 134725352 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 1077 594 271 78 0 363 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4308

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

[startup+0.801029 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=4308 CPUtime=0.79 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 660 0 0 0 79 0 0 0 25 0 1 0 366082826 4411392 599 33554432000 134512640 134829744 4289838928 18446744073709551615 134661645 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 1077 599 271 78 0 363 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4308

[startup+1.00099 s]
/proc/loadavg: 3.93 3.98 3.89 5/189 12645
/proc/meminfo: memFree=18369824/32950928 swapFree=67111528/67111528
[pid=12645] ppid=12643 vsize=4440 CPUtime=0.99 cores=1,3
/proc/12645/stat : 12645 (MPhaseSAT_M) R 12643 12645 11923 0 -1 4202496 699 0 0 0 99 0 0 0 25 0 1 0 366082826 4546560 638 33554432000 134512640 134829744 4289838928 18446744073709551615 134605237 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12645/statm: 1110 638 274 78 0 396 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 4440

Child status: 10
Real time (s): 1.02351
CPU time (s): 1.02184
CPU user time (s): 1.02184
CPU system time (s): 0
CPU usage (%): 99.8372
Max. virtual memory (cumulated for all children) (KiB): 4440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.02184
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= 709
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= 13

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node115 at 2011-04-02 17:35:22
IDJOB=3095767
IDBENCH=83049
IDSOLVER=1522
FILE ID=node115/3095767-1301758522
RUNJOBID= node115-1301757117-11943
PBS_JOBID= 12841079
Free space on /tmp= 71368 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S840902310-084.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095767-1301758522/watcher-3095767-1301758522 -o /tmp/evaluation-result-3095767-1301758522/solver-3095767-1301758522 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095767-1301758522.cnf

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

MD5SUM BENCH= 02c45b007aaa35525677ccadd4298d97
RANDOM SEED=1006418436

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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	: 5226.15
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.77
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		: 2666.811
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	: 5332.74
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		: 2666.811
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		: 2666.811
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      18369980 kB
Buffers:        397800 kB
Cached:       13697888 kB
SwapCached:          0 kB
Active:        9358492 kB
Inactive:      4916956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18369980 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             916 kB
Writeback:           0 kB
AnonPages:      179792 kB
Mapped:          16940 kB
Slab:           241448 kB
PageTables:       5384 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   370476 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= 71368 MiB
End job on node115 at 2011-04-02 17:35:23