Trace number 3221054

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_M 2011-02-16SAT 0.796878 0.802162

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 benchmark0.005999
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_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.80	c input CNF file=HOME/instance-3221054-1303289627.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#=1 clauses#=1688 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=390  
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#=8 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 -111 112 114 -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 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.795879

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221054-1303289627/watcher-3221054-1303289627 -o /tmp/evaluation-result-3221054-1303289627/solver-3221054-1303289627 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221054-1303289627.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=3140 CPUtime=0 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 318 0 0 0 0 0 0 0 22 0 1 0 421378589 3215360 260 33554432000 134512640 134829744 4289670560 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/32100/statm: 784 263 228 78 0 70 0

[startup+0.072806 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=3620 CPUtime=0.06 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 496 0 0 0 6 0 0 0 22 0 1 0 421378589 3706880 437 33554432000 134512640 134829744 4289670560 18446744073709551615 134718018 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/32100/statm: 905 437 271 78 0 191 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3620

[startup+0.100801 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=3620 CPUtime=0.09 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 502 0 0 0 9 0 0 0 22 0 1 0 421378589 3706880 443 33554432000 134512640 134829744 4289670560 18446744073709551615 134669792 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/32100/statm: 905 443 271 78 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3620

[startup+0.300764 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=3884 CPUtime=0.29 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 575 0 0 0 29 0 0 0 23 0 1 0 421378589 3977216 516 33554432000 134512640 134829744 4289670560 18446744073709551615 134662133 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/32100/statm: 971 516 271 78 0 257 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3884

[startup+0.700694 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=4148 CPUtime=0.69 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 625 0 0 0 69 0 0 0 25 0 1 0 421378589 4247552 566 33554432000 134512640 134829744 4289670560 18446744073709551615 3848156 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/32100/statm: 1037 566 271 78 0 323 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4148

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

[startup+0.800685 s]
/proc/loadavg: 1.67 1.91 1.97 3/177 32100
/proc/meminfo: memFree=18779136/32951124 swapFree=67111528/67111528
[pid=32100] ppid=32098 vsize=4284 CPUtime=0.79 cores=0,2,4,6
/proc/32100/stat : 32100 (MPhaseSAT_M) R 32098 32100 30685 0 -1 4202496 662 0 0 0 79 0 0 0 25 0 1 0 421378589 4386816 602 33554432000 134512640 134829744 4289670560 18446744073709551615 3698638 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/32100/statm: 1071 602 274 78 0 357 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4284

Child status: 10
Real time (s): 0.802162
CPU time (s): 0.796878
CPU user time (s): 0.794879
CPU system time (s): 0.001999
CPU usage (%): 99.3413
Max. virtual memory (cumulated for all children) (KiB): 4284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.794879
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= 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= 3

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-20 10:53:47
IDJOB=3221054
IDBENCH=82859
IDSOLVER=1637
FILE ID=node147/3221054-1303289627
RUNJOBID= node147-1303268318-30703
PBS_JOBID= 13049527
Free space on /tmp= 72260 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1462223811-042.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221054-1303289627/watcher-3221054-1303289627 -o /tmp/evaluation-result-3221054-1303289627/solver-3221054-1303289627 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221054-1303289627.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= cd0b1f588aad9c4aef9bf4b7912f7c0d
RANDOM SEED=2130201405

node147.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		: 2666.836
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		: 2666.836
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	: 5332.75
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		: 2666.836
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:     32951124 kB
MemFree:      18779292 kB
Buffers:        716292 kB
Cached:       13010500 kB
SwapCached:          0 kB
Active:        5631232 kB
Inactive:      8182376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18779292 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             600 kB
Writeback:           0 kB
AnonPages:       87124 kB
Mapped:          16316 kB
Slab:           296156 kB
PageTables:       4676 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   232144 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= 72260 MiB
End job on node147 at 2011-04-20 10:53:48