Trace number 3094290

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 0.819874 0.821284

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S930506247-025.SATISFIABLE.cnf
MD5SUM7d7bac8ccb8010e4eec020bc5c53d758
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
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 

0.79/0.82	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.82	c input CNF file=HOME/instance-3094290-1307669864.cnf 
0.79/0.82	c Clause#=1704  var#=400  ratio=4 
0.79/0.82	c Simplified clause#=1704 
0.79/0.82	c XOR_varElimination deleted var#=1 clauses#=1700 
0.79/0.82	c inative var#=0 
0.79/0.82	c free var#=389  
0.79/0.82	c local search on 
0.79/0.82	c A solution found by local search 
0.79/0.82	c unfixed var#=10 var#=400 
0.79/0.82	c verified 
0.79/0.82	c 
0.79/0.82	s SATISFIABLE
0.79/0.82	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 -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 -277 -278 279 280 -281 -282 283 284 285 286 -287 -288 -289 -290 -291 292 293 294 295 -296 298 -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 -374 375 376 377 -378 379 -380 381 382 -383 384 385 386 387 -388 -389 -390 391 392 -393 394 -395 396 397 398 399 -400 
0.79/0.82	v 0
0.79/0.82	c 
0.79/0.82	c  Running time=0.818875

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3094290-1307669864/watcher-3094290-1307669864 -o /tmp/evaluation-result-3094290-1307669864/solver-3094290-1307669864 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094290-1307669864.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: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=3112 CPUtime=0 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 366 0 0 0 0 0 0 0 25 0 1 0 957217030 3186688 306 33554432000 134512640 134731564 4286807584 18446744073709551615 134559213 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 778 306 237 54 0 88 0

[startup+0.0192089 s]
/proc/loadavg: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=3388 CPUtime=0.01 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 445 0 0 0 1 0 0 0 25 0 1 0 957217030 3469312 385 33554432000 134512640 134731564 4286807584 18446744073709551615 134723674 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 847 385 268 54 0 157 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3388

[startup+0.100194 s]
/proc/loadavg: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=3520 CPUtime=0.09 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 499 0 0 0 9 0 0 0 25 0 1 0 957217030 3604480 439 33554432000 134512640 134731564 4286807584 18446744073709551615 2758622 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 880 439 268 54 0 190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3520

[startup+0.300159 s]
/proc/loadavg: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=3916 CPUtime=0.29 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 575 0 0 0 29 0 0 0 25 0 1 0 957217030 4009984 515 33554432000 134512640 134731564 4286807584 18446744073709551615 134624770 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 979 515 268 54 0 289 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3916

[startup+0.70108 s]
/proc/loadavg: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=4048 CPUtime=0.69 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 626 0 0 0 69 0 0 0 25 0 1 0 957217030 4145152 566 33554432000 134512640 134731564 4286807584 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 1012 566 268 54 0 322 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4048

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

[startup+0.801062 s]
/proc/loadavg: 4.03 3.99 3.58 4/189 2386
/proc/meminfo: memFree=32071288/32950928 swapFree=67051096/67111528
[pid=2386] ppid=2384 vsize=4184 CPUtime=0.79 cores=1,3
/proc/2386/stat : 2386 (MPhaseSAT) R 2384 2386 1675 0 -1 4202496 658 0 0 0 79 0 0 0 25 0 1 0 957217030 4284416 598 33554432000 134512640 134731564 4286807584 18446744073709551615 134607307 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2386/statm: 1046 598 271 54 0 356 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4184

Child status: 10
Real time (s): 0.821284
CPU time (s): 0.819874
CPU user time (s): 0.818875
CPU system time (s): 0.000999
CPU usage (%): 99.8283
Max. virtual memory (cumulated for all children) (KiB): 4184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.818875
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= 668
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node113 at 2011-06-10 03:37:44
IDJOB=3094290
IDBENCH=82772
IDSOLVER=1520
FILE ID=node113/3094290-1307669864
RUNJOBID= node113-1307668559-2090
PBS_JOBID= 13549467
Free space on /tmp= 74060 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S930506247-025.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094290-1307669864/watcher-3094290-1307669864 -o /tmp/evaluation-result-3094290-1307669864/solver-3094290-1307669864 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094290-1307669864.cnf

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

MD5SUM BENCH= 7d7bac8ccb8010e4eec020bc5c53d758
RANDOM SEED=2049993465

node113.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	: 5332.76
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	: 5332.74
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.74
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	: 5332.83
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      32071576 kB
Buffers:        210388 kB
Cached:         415088 kB
SwapCached:      14384 kB
Active:         380144 kB
Inactive:       308024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32071576 kB
SwapTotal:    67111528 kB
SwapFree:     67051096 kB
Dirty:            1092 kB
Writeback:           0 kB
AnonPages:       59944 kB
Mapped:          10932 kB
Slab:           127272 kB
PageTables:       4884 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   293164 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= 74060 MiB
End job on node113 at 2011-06-10 03:37:45