Trace number 3221732

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 0.85387 0.855598

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
MD5SUM181d327d4cfd49957ee63dfb74a0e12a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
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 

0.79/0.85	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.85	c input CNF file=HOME/instance-3221732-1303296253.cnf 
0.79/0.85	c Clause#=1917  var#=450  ratio=4 
0.79/0.85	c Simplified clause#=1917 
0.79/0.85	c XOR_varElimination deleted var#=0 clauses#=1909 
0.79/0.85	c inative var#=0 
0.79/0.85	c free var#=440  
0.79/0.85	c local search on 
0.79/0.85	c A solution found by local search 
0.79/0.85	c unfixed var#=9 var#=450 
0.79/0.85	c verified 
0.79/0.85	c 
0.79/0.85	s SATISFIABLE
0.79/0.85	v -1 -2 -3 -4 5 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 -108 109 111 -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 -373 374 375 377 378 -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 
0.79/0.85	v 0
0.79/0.85	c 
0.79/0.85	c  Running time=0.853870

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221732-1303296253/watcher-3221732-1303296253 -o /tmp/evaluation-result-3221732-1303296253/solver-3221732-1303296253 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221732-1303296253.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=3360 CPUtime=0 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 374 0 0 0 0 0 0 0 25 0 1 0 441225130 3440640 314 33554432000 134512640 134829744 4286767504 18446744073709551615 11638627 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 840 314 238 78 0 126 0

[startup+0.06825 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=3624 CPUtime=0.06 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 507 0 0 0 6 0 0 0 25 0 1 0 441225130 3710976 447 33554432000 134512640 134829744 4286767504 18446744073709551615 134678505 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 906 447 270 78 0 192 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3624

[startup+0.100215 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=3624 CPUtime=0.09 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 509 0 0 0 9 0 0 0 25 0 1 0 441225130 3710976 449 33554432000 134512640 134829744 4286767504 18446744073709551615 134723496 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 906 449 270 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.300184 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=3888 CPUtime=0.29 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 570 0 0 0 29 0 0 0 25 0 1 0 441225130 3981312 510 33554432000 134512640 134829744 4286767504 18446744073709551615 134722641 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 972 510 270 78 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3888

[startup+0.700999 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=4152 CPUtime=0.69 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 643 0 0 0 69 0 0 0 25 0 1 0 441225130 4251648 583 33554432000 134512640 134829744 4286767504 18446744073709551615 134661647 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 1038 583 270 78 0 324 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4152

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

[startup+0.80098 s]
/proc/loadavg: 2.02 2.01 2.00 3/177 6309
/proc/meminfo: memFree=17433012/32950928 swapFree=67111528/67111528
[pid=6309] ppid=6307 vsize=4284 CPUtime=0.79 cores=0,2,4,6
/proc/6309/stat : 6309 (MPhaseSAT_M) R 6307 6309 5820 0 -1 4202496 649 0 0 0 79 0 0 0 25 0 1 0 441225130 4386816 589 33554432000 134512640 134829744 4286767504 18446744073709551615 134661808 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6309/statm: 1071 589 270 78 0 357 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4284

Child status: 10
Real time (s): 0.855598
CPU time (s): 0.85387
CPU user time (s): 0.85387
CPU system time (s): 0
CPU usage (%): 99.798
Max. virtual memory (cumulated for all children) (KiB): 4284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85387
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= 691
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-20 12:44:13
IDJOB=3221732
IDBENCH=82972
IDSOLVER=1637
FILE ID=node123/3221732-1303296253
RUNJOBID= node123-1303291017-5838
PBS_JOBID= 13049622
Free space on /tmp= 72504 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221732-1303296253/watcher-3221732-1303296253 -o /tmp/evaluation-result-3221732-1303296253/solver-3221732-1303296253 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221732-1303296253.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 181d327d4cfd49957ee63dfb74a0e12a
RANDOM SEED=864543367

node123.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	: 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		: 2666.838
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	: 5332.82
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.80
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	: 5332.74
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      17433176 kB
Buffers:        672540 kB
Cached:       14417428 kB
SwapCached:          0 kB
Active:        5935992 kB
Inactive:      9240972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17433176 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             520 kB
Writeback:           0 kB
AnonPages:       86880 kB
Mapped:          16524 kB
Slab:           276740 kB
PageTables:       4716 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   238836 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= 72504 MiB
End job on node123 at 2011-04-20 12:44:14