Trace number 3094377

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 2011-02-15SAT 0.857868 0.860677

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1462223811-042.SATISFIABLE.cnf
MD5SUMcd0b1f588aad9c4aef9bf4b7912f7c0d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004999
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.79/0.86	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.86	c input CNF file=HOME/instance-3094377-1301753984.cnf 
0.79/0.86	c Clause#=1704  var#=400  ratio=4 
0.79/0.86	c Simplified clause#=1704 
0.79/0.86	c XOR_varElimination deleted var#=1 clauses#=1688 
0.79/0.86	c inative var#=0 
0.79/0.86	c free var#=390  
0.79/0.86	c local search on 
0.79/0.86	c A solution found by local search 
0.79/0.86	c unfixed var#=8 var#=400 
0.79/0.86	c verified 
0.79/0.86	c 
0.79/0.86	s SATISFIABLE
0.79/0.86	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 -111 112 114 -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 -276 278 279 -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 -376 378 -379 380 381 -382 -383 384 -385 -386 387 388 -389 390 391 -392 -393 394 -395 -396 397 -398 399 400 
0.79/0.86	v 0
0.79/0.86	c 
0.79/0.86	c  Running time=0.856869

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-3094377-1301753984/watcher-3094377-1301753984 -o /tmp/evaluation-result-3094377-1301753984/solver-3094377-1301753984 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094377-1301753984.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: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=3112 CPUtime=0 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 368 0 0 0 0 0 0 0 25 0 1 0 286996942 3186688 307 33554432000 134512640 134731564 4293633536 18446744073709551615 134559213 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 778 307 237 54 0 88 0

[startup+0.0441799 s]
/proc/loadavg: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=3388 CPUtime=0.04 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 471 0 0 0 4 0 0 0 25 0 1 0 286996942 3469312 410 33554432000 134512640 134731564 4293633536 18446744073709551615 134659977 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 847 410 269 54 0 157 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3388

[startup+0.101161 s]
/proc/loadavg: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=3520 CPUtime=0.09 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 501 0 0 0 9 0 0 0 25 0 1 0 286996942 3604480 440 33554432000 134512640 134731564 4293633536 18446744073709551615 134634453 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 880 440 269 54 0 190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3520

[startup+0.301152 s]
/proc/loadavg: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=3784 CPUtime=0.29 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 556 0 0 0 29 0 0 0 25 0 1 0 286996942 3874816 495 33554432000 134512640 134731564 4293633536 18446744073709551615 12019676 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 946 495 269 54 0 256 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3784

[startup+0.701063 s]
/proc/loadavg: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=4048 CPUtime=0.69 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 621 0 0 0 69 0 0 0 25 0 1 0 286996942 4145152 560 33554432000 134512640 134731564 4293633536 18446744073709551615 134720319 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 1012 560 269 54 0 322 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4048

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

[startup+0.801058 s]
/proc/loadavg: 4.01 4.00 3.95 5/189 18851
/proc/meminfo: memFree=20947672/32951124 swapFree=67111528/67111528
[pid=18851] ppid=18849 vsize=4048 CPUtime=0.79 cores=0,2
/proc/18851/stat : 18851 (MPhaseSAT) R 18849 18851 17798 0 -1 4202496 629 0 0 0 79 0 0 0 25 0 1 0 286996942 4145152 568 33554432000 134512640 134731564 4293633536 18446744073709551615 134721839 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18851/statm: 1012 568 269 54 0 322 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4048

Child status: 10
Real time (s): 0.860677
CPU time (s): 0.857868
CPU user time (s): 0.856869
CPU system time (s): 0.000999
CPU usage (%): 99.6736
Max. virtual memory (cumulated for all children) (KiB): 4048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.856869
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= 670
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= 9

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-02 16:19:44
IDJOB=3094377
IDBENCH=82859
IDSOLVER=1520
FILE ID=node130/3094377-1301753984
RUNJOBID= node130-1301748570-17816
PBS_JOBID= 12841007
Free space on /tmp= 71988 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1462223811-042.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094377-1301753984/watcher-3094377-1301753984 -o /tmp/evaluation-result-3094377-1301753984/solver-3094377-1301753984 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094377-1301753984.cnf

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

MD5SUM BENCH= cd0b1f588aad9c4aef9bf4b7912f7c0d
RANDOM SEED=328243108

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:      20947952 kB
Buffers:        356172 kB
Cached:       11305068 kB
SwapCached:          0 kB
Active:        7238224 kB
Inactive:      4505548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20947952 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             544 kB
Writeback:           0 kB
AnonPages:       82356 kB
Mapped:          17124 kB
Slab:           196264 kB
PageTables:       5252 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269120 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 16:19:45