Trace number 3094369

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 0.830873 0.831825

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1960786523-069.SATISFIABLE.cnf
MD5SUM23247368fdc20070eb9c682abfb798ef
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 

0.79/0.83	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.83	c input CNF file=HOME/instance-3094369-1301753973.cnf 
0.79/0.83	c Clause#=1704  var#=400  ratio=4 
0.79/0.83	c Simplified clause#=1704 
0.79/0.83	c XOR_varElimination deleted var#=1 clauses#=1693 
0.79/0.83	c inative var#=0 
0.79/0.83	c free var#=388  
0.79/0.83	c local search on 
0.79/0.83	c A solution found by local search 
0.79/0.83	c unfixed var#=10 var#=400 
0.79/0.83	c verified 
0.79/0.83	c 
0.79/0.83	s SATISFIABLE
0.79/0.83	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 -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 -136 137 138 140 -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 -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 
0.79/0.83	v 0
0.79/0.83	c 
0.79/0.83	c  Running time=0.828874

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-3094369-1301753973/watcher-3094369-1301753973 -o /tmp/evaluation-result-3094369-1301753973/solver-3094369-1301753973 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094369-1301753973.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: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=3112 CPUtime=0 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 370 0 0 0 0 0 0 0 25 0 1 0 286996053 3186688 308 33554432000 134512640 134731564 4294580400 18446744073709551615 134576060 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 778 308 238 54 0 88 0

[startup+0.0473829 s]
/proc/loadavg: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=3520 CPUtime=0.04 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 479 0 0 0 4 0 0 0 25 0 1 0 286996053 3604480 417 33554432000 134512640 134731564 4294580400 18446744073709551615 134659345 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 880 417 268 54 0 190 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3520

[startup+0.100435 s]
/proc/loadavg: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=3520 CPUtime=0.09 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 502 0 0 0 9 0 0 0 25 0 1 0 286996053 3604480 440 33554432000 134512640 134731564 4294580400 18446744073709551615 134723198 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 880 440 268 54 0 190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3520

[startup+0.300352 s]
/proc/loadavg: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=3784 CPUtime=0.29 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 553 0 0 0 29 0 0 0 25 0 1 0 286996053 3874816 491 33554432000 134512640 134731564 4294580400 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 946 491 268 54 0 256 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3784

[startup+0.700279 s]
/proc/loadavg: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=4048 CPUtime=0.69 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 629 0 0 0 69 0 0 0 25 0 1 0 286996053 4145152 567 33554432000 134512640 134731564 4294580400 18446744073709551615 134659520 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 1012 567 268 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+0.800261 s]
/proc/loadavg: 3.93 3.99 3.93 4/189 12954
/proc/meminfo: memFree=22337368/32950928 swapFree=67111528/67111528
[pid=12954] ppid=12952 vsize=4180 CPUtime=0.79 cores=0,2
/proc/12954/stat : 12954 (MPhaseSAT) R 12952 12954 11954 0 -1 4202496 659 0 0 0 79 0 0 0 25 0 1 0 286996053 4280320 597 33554432000 134512640 134731564 4294580400 18446744073709551615 134603383 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12954/statm: 1045 597 271 54 0 355 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4180

Child status: 10
Real time (s): 0.831825
CPU time (s): 0.830873
CPU user time (s): 0.830873
CPU system time (s): 0
CPU usage (%): 99.8855
Max. virtual memory (cumulated for all children) (KiB): 4180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.830873
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= 672
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= 12
involuntary context switches= 3

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-02 16:19:33
IDJOB=3094369
IDBENCH=82851
IDSOLVER=1520
FILE ID=node120/3094369-1301753973
RUNJOBID= node120-1301748570-11972
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-S1960786523-069.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094369-1301753973/watcher-3094369-1301753973 -o /tmp/evaluation-result-3094369-1301753973/solver-3094369-1301753973 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094369-1301753973.cnf

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

MD5SUM BENCH= 23247368fdc20070eb9c682abfb798ef
RANDOM SEED=1559266635

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:      22337384 kB
Buffers:        352040 kB
Cached:        9911676 kB
SwapCached:          0 kB
Active:        7351860 kB
Inactive:      2990108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22337384 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:              32 kB
Writeback:           0 kB
AnonPages:       78072 kB
Mapped:          16912 kB
Slab:           207652 kB
PageTables:       5208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   259168 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= 71760 MiB
End job on node120 at 2011-04-02 16:19:34