Trace number 3094326

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 0.84687 0.849758

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S2065964480-034.SATISFIABLE.cnf
MD5SUM06d324a3bc5f99e4e9d2e5560e56ab8e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
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 

0.79/0.84	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.84	c input CNF file=HOME/instance-3094326-1301753795.cnf 
0.79/0.84	c Clause#=1917  var#=450  ratio=4 
0.79/0.84	c Simplified clause#=1917 
0.79/0.84	c XOR_varElimination deleted var#=0 clauses#=1915 
0.79/0.84	c inative var#=0 
0.79/0.84	c free var#=437  
0.79/0.84	c local search on 
0.79/0.84	c A solution found by local search 
0.79/0.84	c unfixed var#=12 var#=450 
0.79/0.84	c verified 
0.79/0.84	c 
0.79/0.84	s SATISFIABLE
0.79/0.84	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 -197 -198 -199 -200 201 202 -203 -204 205 206 -207 208 -209 210 -211 212 -213 -214 -215 216 217 -218 220 221 222 -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 -320 321 322 323 325 -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 -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 
0.79/0.84	v 0
0.79/0.84	c 
0.79/0.84	c  Running time=0.845871

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-3094326-1301753795/watcher-3094326-1301753795 -o /tmp/evaluation-result-3094326-1301753795/solver-3094326-1301753795 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094326-1301753795.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: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=3040 CPUtime=0 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 322 0 0 0 0 0 0 0 25 0 1 0 365610178 3112960 261 33554432000 134512640 134731564 4287906256 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 760 261 225 54 0 70 0

[startup+0.0357271 s]
/proc/loadavg: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=3392 CPUtime=0.03 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 469 0 0 0 3 0 0 0 25 0 1 0 365610178 3473408 407 33554432000 134512640 134731564 4287906256 18446744073709551615 134645585 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 848 407 269 54 0 158 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3392

[startup+0.100715 s]
/proc/loadavg: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=3524 CPUtime=0.09 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 512 0 0 0 9 0 0 0 25 0 1 0 365610178 3608576 450 33554432000 134512640 134731564 4287906256 18446744073709551615 134624731 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 881 450 269 54 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3524

[startup+0.300678 s]
/proc/loadavg: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=3788 CPUtime=0.29 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 572 0 0 0 29 0 0 0 25 0 1 0 365610178 3878912 510 33554432000 134512640 134731564 4287906256 18446744073709551615 134623185 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 947 510 269 54 0 257 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3788

[startup+0.700662 s]
/proc/loadavg: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=4052 CPUtime=0.69 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 641 0 0 0 69 0 0 0 25 0 1 0 365610178 4149248 579 33554432000 134512640 134731564 4287906256 18446744073709551615 134659520 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 1013 579 269 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+0.800644 s]
/proc/loadavg: 4.00 4.00 3.94 5/189 13957
/proc/meminfo: memFree=19160684/32950928 swapFree=67111528/67111528
[pid=13957] ppid=13955 vsize=4184 CPUtime=0.79 cores=1,3
/proc/13957/stat : 13957 (MPhaseSAT) R 13955 13957 13129 0 -1 4202496 651 0 0 0 79 0 0 0 25 0 1 0 365610178 4284416 589 33554432000 134512640 134731564 4287906256 18446744073709551615 134659293 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13957/statm: 1046 589 269 54 0 356 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4184

Child status: 10
Real time (s): 0.849758
CPU time (s): 0.84687
CPU user time (s): 0.843871
CPU system time (s): 0.002999
CPU usage (%): 99.6601
Max. virtual memory (cumulated for all children) (KiB): 4184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.843871
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 693
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 0.002999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-02 16:16:35
IDJOB=3094326
IDBENCH=82808
IDSOLVER=1520
FILE ID=node116/3094326-1301753795
RUNJOBID= node116-1301748570-13149
PBS_JOBID= 12841021
Free space on /tmp= 71264 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2065964480-034.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094326-1301753795/watcher-3094326-1301753795 -o /tmp/evaluation-result-3094326-1301753795/solver-3094326-1301753795 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094326-1301753795.cnf

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

MD5SUM BENCH= 06d324a3bc5f99e4e9d2e5560e56ab8e
RANDOM SEED=1721756848

node116.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		: 2666.826
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	: 5333.65
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		: 2666.826
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	: 5226.15
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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.77
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		: 2666.826
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		: 2666.826
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	: 5332.75
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		: 2666.826
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:      19160940 kB
Buffers:        387312 kB
Cached:       13012172 kB
SwapCached:          0 kB
Active:        9105324 kB
Inactive:      4377140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      19160940 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             884 kB
Writeback:           0 kB
AnonPages:       83080 kB
Mapped:          16904 kB
Slab:           244380 kB
PageTables:       5180 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   268564 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= 71264 MiB
End job on node116 at 2011-04-02 16:16:36