Trace number 3095526

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 0.84687 0.850708

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 

0.79/0.85	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.85	c input CNF file=HOME/instance-3095526-1301753787.cnf 
0.79/0.85	c Clause#=1917  var#=450  ratio=4 
0.79/0.85	c Simplified clause#=1917 
0.79/0.85	c XOR_varElimination deleted var#=0 clauses#=1915 
0.79/0.85	c inative var#=0 
0.79/0.85	c free var#=437  
0.79/0.85	c local search on 
0.79/0.85	c A solution found by local search 
0.79/0.85	c unfixed var#=12 var#=450 
0.79/0.85	c verified 
0.79/0.85	c 
0.79/0.85	s SATISFIABLE
0.79/0.85	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 
0.79/0.85	v 0
0.79/0.85	c 
0.79/0.85	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-3095526-1301753787/watcher-3095526-1301753787 -o /tmp/evaluation-result-3095526-1301753787/solver-3095526-1301753787 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095526-1301753787.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: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=3140 CPUtime=0 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 321 0 0 0 0 0 0 0 25 0 1 0 365609417 3215360 260 33554432000 134512640 134829744 4288102640 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 785 260 225 78 0 71 0

[startup+0.013185 s]
/proc/loadavg: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=3360 CPUtime=0 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 415 0 0 0 0 0 0 0 25 0 1 0 365609417 3440640 353 33554432000 134512640 134829744 4288102640 18446744073709551615 10253820 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 840 354 253 78 0 126 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3360

[startup+0.100228 s]
/proc/loadavg: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=3624 CPUtime=0.09 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 514 0 0 0 9 0 0 0 25 0 1 0 365609417 3710976 452 33554432000 134512640 134829744 4288102640 18446744073709551615 134724629 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 906 452 271 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.30019 s]
/proc/loadavg: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=3888 CPUtime=0.29 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 572 0 0 0 29 0 0 0 25 0 1 0 365609417 3981312 510 33554432000 134512640 134829744 4288102640 18446744073709551615 134661449 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 972 510 271 78 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3888

[startup+0.701123 s]
/proc/loadavg: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=4152 CPUtime=0.69 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 643 0 0 0 69 0 0 0 25 0 1 0 365609417 4251648 581 33554432000 134512640 134829744 4288102640 18446744073709551615 134722597 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 1038 581 271 78 0 324 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4152

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

[startup+0.801088 s]
/proc/loadavg: 3.76 3.95 3.93 4/186 28685
/proc/meminfo: memFree=20542260/32950928 swapFree=67111528/67111528
[pid=28685] ppid=28683 vsize=4284 CPUtime=0.79 cores=4,6
/proc/28685/stat : 28685 (MPhaseSAT_M) R 28683 28685 27938 0 -1 4202496 653 0 0 0 79 0 0 0 25 0 1 0 365609417 4386816 591 33554432000 134512640 134829744 4288102640 18446744073709551615 134661453 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28685/statm: 1071 591 271 78 0 357 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4284

Child status: 10
Real time (s): 0.850708
CPU time (s): 0.84687
CPU user time (s): 0.845871
CPU system time (s): 0.000999
CPU usage (%): 99.5489
Max. virtual memory (cumulated for all children) (KiB): 4284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.845871
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= 695
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node114 at 2011-04-02 16:16:27
IDJOB=3095526
IDBENCH=82808
IDSOLVER=1522
FILE ID=node114/3095526-1301753787
RUNJOBID= node114-1301748575-27957
PBS_JOBID= 12841023
Free space on /tmp= 70636 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2065964480-034.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095526-1301753787/watcher-3095526-1301753787 -o /tmp/evaluation-result-3095526-1301753787/solver-3095526-1301753787 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095526-1301753787.cnf

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

MD5SUM BENCH= 06d324a3bc5f99e4e9d2e5560e56ab8e
RANDOM SEED=146881552

node114.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		: 2666.848
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		: 2666.848
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		: 2666.848
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	: 5332.74
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		: 2666.848
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	: 5332.73
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		: 2666.848
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	: 5332.75
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		: 2666.848
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		: 2666.848
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		: 2666.848
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:      20542688 kB
Buffers:        379096 kB
Cached:       11600980 kB
SwapCached:          0 kB
Active:        8031424 kB
Inactive:      4070836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20542688 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             796 kB
Writeback:           0 kB
AnonPages:      122052 kB
Mapped:          16440 kB
Slab:           243268 kB
PageTables:       4936 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   301544 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= 70636 MiB
End job on node114 at 2011-04-02 16:16:28