Trace number 3095090

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 0.891863 0.892335

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 benchmark0.005998
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 

0.79/0.89	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.89	c input CNF file=HOME/instance-3095090-1301757633.cnf 
0.79/0.89	c Clause#=1917  var#=450  ratio=4 
0.79/0.89	c Simplified clause#=1917 
0.79/0.89	c XOR_varElimination deleted var#=0 clauses#=1909 
0.79/0.89	c inative var#=0 
0.79/0.89	c free var#=440  
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#=9 var#=450 
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 -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 
0.79/0.89	v 0
0.79/0.89	c 
0.79/0.89	c  Running time=0.889865

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-3095090-1301757633/watcher-3095090-1301757633 -o /tmp/evaluation-result-3095090-1301757633/solver-3095090-1301757633 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095090-1301757633.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: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=3152 CPUtime=0 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 371 0 0 0 0 0 0 0 25 0 1 0 287362934 3227648 310 33554432000 134512640 134761588 4287329008 18446744073709551615 134571603 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 788 312 237 61 0 91 0

[startup+0.053975 s]
/proc/loadavg: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=3740 CPUtime=0.05 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 531 0 0 0 5 0 0 0 25 0 1 0 287362934 3829760 470 33554432000 134512640 134761588 4287329008 18446744073709551615 134636853 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 935 470 274 61 0 238 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3740

[startup+0.100923 s]
/proc/loadavg: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=3900 CPUtime=0.09 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 603 0 0 0 9 0 0 0 25 0 1 0 287362934 3993600 542 33554432000 134512640 134761588 4287329008 18446744073709551615 134636797 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 975 542 274 61 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3900

[startup+0.300886 s]
/proc/loadavg: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=4876 CPUtime=0.29 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 847 0 0 0 29 0 0 0 25 0 1 0 287362934 4993024 786 33554432000 134512640 134761588 4287329008 18446744073709551615 134748113 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 1219 786 274 61 0 522 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4876

[startup+0.70082 s]
/proc/loadavg: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=5580 CPUtime=0.69 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 1087 0 0 0 69 0 0 0 25 0 1 0 287362934 5713920 930 33554432000 134512640 134761588 4287329008 18446744073709551615 134681963 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 1395 930 274 61 0 698 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5580

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

[startup+0.800804 s]
/proc/loadavg: 4.00 3.99 3.88 4/187 12926
/proc/meminfo: memFree=22053068/32951132 swapFree=67111528/67111528
[pid=12926] ppid=12924 vsize=5840 CPUtime=0.79 cores=1,3
/proc/12926/stat : 12926 (MPhaseSAT64) R 12924 12926 12621 0 -1 4202496 1152 0 0 0 79 0 0 0 25 0 1 0 287362934 5980160 995 33554432000 134512640 134761588 4287329008 18446744073709551615 134747069 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12926/statm: 1460 995 274 61 0 763 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5840

Child status: 10
Real time (s): 0.892335
CPU time (s): 0.891863
CPU user time (s): 0.889864
CPU system time (s): 0.001999
CPU usage (%): 99.9471
Max. virtual memory (cumulated for all children) (KiB): 5840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.889864
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1165
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= 5

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node129 at 2011-04-02 17:20:33
IDJOB=3095090
IDBENCH=82972
IDSOLVER=1521
FILE ID=node129/3095090-1301757633
RUNJOBID= node129-1301756648-12641
PBS_JOBID= 12841055
Free space on /tmp= 72148 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095090-1301757633/watcher-3095090-1301757633 -o /tmp/evaluation-result-3095090-1301757633/solver-3095090-1301757633 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095090-1301757633.cnf

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

MD5SUM BENCH= 181d327d4cfd49957ee63dfb74a0e12a
RANDOM SEED=378885206

node129.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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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:     32951132 kB
MemFree:      22053084 kB
Buffers:        347832 kB
Cached:       10213824 kB
SwapCached:          0 kB
Active:        7110500 kB
Inactive:      3537720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      22053084 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             484 kB
Writeback:           0 kB
AnonPages:       86840 kB
Mapped:          17312 kB
Slab:           186520 kB
PageTables:       5540 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   274732 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72148 MiB
End job on node129 at 2011-04-02 17:20:34