Trace number 3095137

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 0.877866 0.880737

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1023920765-089.SATISFIABLE.cnf
MD5SUMea9dfa5adeec712c099d553962345305
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 

0.79/0.88	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.88	c input CNF file=HOME/instance-3095137-1301758375.cnf 
0.79/0.88	c Clause#=1704  var#=400  ratio=4 
0.79/0.88	c Simplified clause#=1704 
0.79/0.88	c XOR_varElimination deleted var#=1 clauses#=1693 
0.79/0.88	c inative var#=0 
0.79/0.88	c free var#=390  
0.79/0.88	c local search on 
0.79/0.88	c A solution found by local search 
0.79/0.88	c unfixed var#=9 var#=400 
0.79/0.88	c verified 
0.79/0.88	c 
0.79/0.88	s SATISFIABLE
0.79/0.88	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 -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 -197 -198 -199 -200 -201 202 203 204 -205 206 207 208 -209 210 -211 212 214 -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 -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 
0.79/0.88	v 0
0.79/0.88	c 
0.79/0.88	c  Running time=0.876867

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-3095137-1301758375/watcher-3095137-1301758375 -o /tmp/evaluation-result-3095137-1301758375/solver-3095137-1301758375 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095137-1301758375.cnf 

running on 2 cores: 5,7

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 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=3140 CPUtime=0 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 287435350 3215360 307 33554432000 134512640 134761588 4288575984 18446744073709551615 134578222 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 785 307 237 61 0 88 0

[startup+0.0682959 s]
/proc/loadavg: 4.00 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=3828 CPUtime=0.06 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 553 0 0 0 6 0 0 0 25 0 1 0 287435350 3919872 491 33554432000 134512640 134761588 4288575984 18446744073709551615 134747232 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 957 491 274 61 0 260 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3828

[startup+0.100288 s]
/proc/loadavg: 4.00 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=3988 CPUtime=0.09 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 593 0 0 0 9 0 0 0 25 0 1 0 287435350 4083712 531 33554432000 134512640 134761588 4288575984 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 997 531 274 61 0 300 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3988

[startup+0.300254 s]
/proc/loadavg: 4.00 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=4772 CPUtime=0.29 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 821 0 0 0 29 0 0 0 25 0 1 0 287435350 4886528 759 33554432000 134512640 134761588 4288575984 18446744073709551615 134747179 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 1193 759 274 61 0 496 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4772

[startup+0.700181 s]
/proc/loadavg: 4.00 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=5804 CPUtime=0.69 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 1143 0 0 0 69 0 0 0 25 0 1 0 287435350 5943296 1017 33554432000 134512640 134761588 4288575984 18446744073709551615 134747254 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 1451 1017 274 61 0 754 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5804

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

[startup+0.800159 s]
/proc/loadavg: 4.00 4.02 3.93 5/193 19668
/proc/meminfo: memFree=20948832/32951124 swapFree=67111528/67111528
[pid=19668] ppid=19666 vsize=5548 CPUtime=0.79 cores=5,7
/proc/19668/stat : 19668 (MPhaseSAT64) R 19666 19668 19189 0 -1 4202496 1143 0 0 0 79 0 0 0 25 0 1 0 287435350 5681152 953 33554432000 134512640 134761588 4288575984 18446744073709551615 134747228 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19668/statm: 1387 953 274 61 0 690 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5548

Child status: 10
Real time (s): 0.880737
CPU time (s): 0.877866
CPU user time (s): 0.877866
CPU system time (s): 0
CPU usage (%): 99.674
Max. virtual memory (cumulated for all children) (KiB): 5804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.877866
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= 1157
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 0.004999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-02 17:32:55
IDJOB=3095137
IDBENCH=83019
IDSOLVER=1521
FILE ID=node135/3095137-1301758375
RUNJOBID= node135-1301756913-19210
PBS_JOBID= 12841067
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1023920765-089.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095137-1301758375/watcher-3095137-1301758375 -o /tmp/evaluation-result-3095137-1301758375/solver-3095137-1301758375 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095137-1301758375.cnf

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

MD5SUM BENCH= ea9dfa5adeec712c099d553962345305
RANDOM SEED=1669544299

node135.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		: 2666.851
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	: 5333.70
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		: 2666.851
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		: 2666.851
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		: 2666.851
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	: 6640.14
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		: 2666.851
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		: 2666.851
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		: 2666.851
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		: 2666.851
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20949112 kB
Buffers:        374764 kB
Cached:       11259576 kB
SwapCached:          0 kB
Active:        7971968 kB
Inactive:      3749248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20949112 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             432 kB
Writeback:           0 kB
AnonPages:       86636 kB
Mapped:          17024 kB
Slab:           218228 kB
PageTables:       5456 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   276120 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71880 MiB
End job on node135 at 2011-04-02 17:32:56