Trace number 3094486

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 0.947855 0.949108

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S2083898043-071.SATISFIABLE.cnf
MD5SUM07e93672799a66cb8290b6b816b1a83d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1917
Sum of the clauses size5751
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31917
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.89/0.94	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.89/0.94	c input CNF file=HOME/instance-3094486-1301757937.cnf 
0.89/0.94	c Clause#=1917  var#=450  ratio=4 
0.89/0.94	c Simplified clause#=1917 
0.89/0.94	c XOR_varElimination deleted var#=0 clauses#=1911 
0.89/0.94	c inative var#=0 
0.89/0.94	c free var#=436  
0.89/0.94	c local search on 
0.89/0.94	c A solution found by local search 
0.89/0.94	c unfixed var#=13 var#=450 
0.89/0.94	c verified 
0.89/0.94	c 
0.89/0.94	s SATISFIABLE
0.89/0.94	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 -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 -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 -316 317 319 -320 321 322 323 324 -325 326 327 -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 -401 -402 -403 404 405 -406 -407 408 409 410 -411 -412 -413 -414 415 416 417 -418 419 420 -421 422 423 424 425 -426 427 428 429 430 431 -432 433 434 -435 436 -437 438 439 -440 441 -442 443 444 445 446 447 -448 -449 450 
0.89/0.94	v 0
0.89/0.94	c 
0.89/0.94	c  Running time=0.946856

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-3094486-1301757937/watcher-3094486-1301757937 -o /tmp/evaluation-result-3094486-1301757937/solver-3094486-1301757937 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094486-1301757937.cnf 

running on 2 cores: 4,6

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: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=3124 CPUtime=0 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 370 0 0 0 0 0 0 0 25 0 1 0 268209173 3198976 309 33554432000 134512640 134731564 4290814880 18446744073709551615 134569295 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 781 309 238 54 0 91 0

[startup+0.0649529 s]
/proc/loadavg: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=3524 CPUtime=0.06 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 504 0 0 0 6 0 0 0 25 0 1 0 268209173 3608576 443 33554432000 134512640 134731564 4290814880 18446744073709551615 134719966 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 881 443 269 54 0 191 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3524

[startup+0.100943 s]
/proc/loadavg: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=3524 CPUtime=0.09 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 510 0 0 0 9 0 0 0 25 0 1 0 268209173 3608576 449 33554432000 134512640 134731564 4290814880 18446744073709551615 134667514 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 881 449 269 54 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3524

[startup+0.300893 s]
/proc/loadavg: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=3920 CPUtime=0.29 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 579 0 0 0 29 0 0 0 25 0 1 0 268209173 4014080 518 33554432000 134512640 134731564 4290814880 18446744073709551615 134670326 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 980 518 269 54 0 290 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3920

[startup+0.700848 s]
/proc/loadavg: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=4052 CPUtime=0.69 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 642 0 0 0 69 0 0 0 25 0 1 0 268209173 4149248 581 33554432000 134512640 134731564 4290814880 18446744073709551615 134659263 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 1013 581 269 54 0 323 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4052

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

[startup+0.900801 s]
/proc/loadavg: 3.78 3.97 3.92 5/189 11504
/proc/meminfo: memFree=20440752/32951124 swapFree=67111528/67111528
[pid=11504] ppid=11502 vsize=4184 CPUtime=0.89 cores=4,6
/proc/11504/stat : 11504 (MPhaseSAT) R 11502 11504 11133 0 -1 4202496 676 0 0 0 89 0 0 0 25 0 1 0 268209173 4284416 615 33554432000 134512640 134731564 4290814880 18446744073709551615 134605126 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11504/statm: 1046 615 272 54 0 356 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4184

Child status: 10
Real time (s): 0.949108
CPU time (s): 0.947855
CPU user time (s): 0.946856
CPU system time (s): 0.000999
CPU usage (%): 99.868
Max. virtual memory (cumulated for all children) (KiB): 4184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.946856
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= 686
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 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node142 at 2011-04-02 17:25:37
IDJOB=3094486
IDBENCH=82968
IDSOLVER=1520
FILE ID=node142/3094486-1301757937
RUNJOBID= node142-1301756633-11152
PBS_JOBID= 12841054
Free space on /tmp= 71032 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2083898043-071.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094486-1301757937/watcher-3094486-1301757937 -o /tmp/evaluation-result-3094486-1301757937/solver-3094486-1301757937 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094486-1301757937.cnf

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

MD5SUM BENCH= 07e93672799a66cb8290b6b816b1a83d
RANDOM SEED=1907173914

node142.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5131.95
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		: 2666.846
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		: 2666.846
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	: 5332.67
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		: 2666.846
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	: 5332.81
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		: 2666.846
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		: 2666.846
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		: 2666.846
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:      20440908 kB
Buffers:        365480 kB
Cached:       11772652 kB
SwapCached:          0 kB
Active:        7521452 kB
Inactive:      4695452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20440908 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2316 kB
Writeback:           0 kB
AnonPages:       79596 kB
Mapped:          16476 kB
Slab:           229296 kB
PageTables:       5256 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   260852 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= 71028 MiB
End job on node142 at 2011-04-02 17:25:38