Trace number 3094241

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 0.807877 0.80972

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
MD5SUMbc5d8e174b258480cce7431b84990bdd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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 

0.79/0.80	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.80	c input CNF file=HOME/instance-3094241-1301752538.cnf 
0.79/0.80	c Clause#=1704  var#=400  ratio=4 
0.79/0.80	c Simplified clause#=1704 
0.79/0.80	c XOR_varElimination deleted var#=0 clauses#=1697 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=384  
0.79/0.80	c local search on 
0.79/0.80	c A solution found by local search 
0.79/0.80	c unfixed var#=14 var#=400 
0.79/0.80	c verified 
0.79/0.80	c 
0.79/0.80	s SATISFIABLE
0.79/0.80	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 -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 -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 -348 349 351 -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 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.805878

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-3094241-1301752538/watcher-3094241-1301752538 -o /tmp/evaluation-result-3094241-1301752538/solver-3094241-1301752538 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094241-1301752538.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: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=3112 CPUtime=0 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 286852575 3186688 307 33554432000 134512640 134731564 4289854128 18446744073709551615 134559147 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 778 307 237 54 0 88 0

[startup+0.068651 s]
/proc/loadavg: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=3520 CPUtime=0.06 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 498 0 0 0 6 0 0 0 25 0 1 0 286852575 3604480 436 33554432000 134512640 134731564 4289854128 18446744073709551615 134659331 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 880 436 268 54 0 190 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3520

[startup+0.100646 s]
/proc/loadavg: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=3520 CPUtime=0.09 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 503 0 0 0 9 0 0 0 25 0 1 0 286852575 3604480 441 33554432000 134512640 134731564 4289854128 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 880 441 268 54 0 190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3520

[startup+0.30061 s]
/proc/loadavg: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=3784 CPUtime=0.29 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 576 0 0 0 29 0 0 0 25 0 1 0 286852575 3874816 514 33554432000 134512640 134731564 4289854128 18446744073709551615 134659520 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 946 514 268 54 0 256 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3784

[startup+0.70054 s]
/proc/loadavg: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=4048 CPUtime=0.69 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 631 0 0 0 69 0 0 0 25 0 1 0 286852575 4145152 569 33554432000 134512640 134731564 4289854128 18446744073709551615 9912647 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 1012 569 268 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+0.800522 s]
/proc/loadavg: 3.88 3.97 3.90 5/189 12629
/proc/meminfo: memFree=22287124/32950928 swapFree=67111528/67111528
[pid=12629] ppid=12627 vsize=4184 CPUtime=0.79 cores=1,3
/proc/12629/stat : 12629 (MPhaseSAT) R 12627 12629 11954 0 -1 4202496 663 0 0 0 79 0 0 0 25 0 1 0 286852575 4284416 601 33554432000 134512640 134731564 4289854128 18446744073709551615 134606133 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12629/statm: 1046 601 271 54 0 356 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4184

Child status: 10
Real time (s): 0.80972
CPU time (s): 0.807877
CPU user time (s): 0.807877
CPU system time (s): 0
CPU usage (%): 99.7724
Max. virtual memory (cumulated for all children) (KiB): 4184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.807877
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= 673
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= 2

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-02 15:55:38
IDJOB=3094241
IDBENCH=82723
IDSOLVER=1520
FILE ID=node120/3094241-1301752538
RUNJOBID= node120-1301748570-11974
PBS_JOBID= 12841017
Free space on /tmp= 71760 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094241-1301752538/watcher-3094241-1301752538 -o /tmp/evaluation-result-3094241-1301752538/solver-3094241-1301752538 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094241-1301752538.cnf

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

MD5SUM BENCH= bc5d8e174b258480cce7431b84990bdd
RANDOM SEED=1571256720

node120.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		: 2666.809
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	: 5333.61
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		: 2666.809
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	: 5226.07
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		: 2666.809
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	: 5332.82
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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	: 5332.82
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		: 2666.809
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      22287404 kB
Buffers:        351664 kB
Cached:        9914008 kB
SwapCached:          0 kB
Active:        7402240 kB
Inactive:      2990228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22287404 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:      127000 kB
Mapped:          16908 kB
Slab:           207512 kB
PageTables:       5344 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   311444 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= 71756 MiB
End job on node120 at 2011-04-02 15:55:39