Trace number 3094453

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 1.00485 1.00648

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S386464511-018.SATISFIABLE.cnf
MD5SUM988859f9794bcb4984b591f0d8d2fa91
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004999
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 

1.00/1.00	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.00/1.00	c input CNF file=HOME/instance-3094453-1301757022.cnf 
1.00/1.00	c Clause#=1917  var#=450  ratio=4 
1.00/1.00	c Simplified clause#=1917 
1.00/1.00	c XOR_varElimination deleted var#=0 clauses#=1890 
1.00/1.00	c inative var#=0 
1.00/1.00	c free var#=427  
1.00/1.00	c local search on 
1.00/1.00	c A solution found by local search 
1.00/1.00	c unfixed var#=19 var#=450 
1.00/1.00	c verified 
1.00/1.00	c 
1.00/1.00	s SATISFIABLE
1.00/1.00	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 -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 -295 296 297 -298 299 -300 301 302 303 304 305 306 -307 308 309 -310 311 -312 -313 -314 315 316 -317 -318 -319 -320 -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 -358 360 361 -362 -363 364 365 -366 -367 368 369 -370 -371 -372 -373 -374 375 -377 378 379 -380 381 -382 -383 384 385 -386 -387 -388 389 -390 -391 -392 -393 394 395 -396 -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 -428 429 431 -432 433 -434 -435 -436 -437 -438 439 -440 441 -442 443 444 -445 -446 -447 448 449 -450 
1.00/1.00	v 0
1.00/1.00	c 
1.00/1.00	c  Running time=1.003847

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-3094453-1301757022/watcher-3094453-1301757022 -o /tmp/evaluation-result-3094453-1301757022/solver-3094453-1301757022 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094453-1301757022.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: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=3124 CPUtime=0 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 373 0 0 0 0 0 0 0 25 0 1 0 268117811 3198976 312 33554432000 134512640 134731564 4293498896 18446744073709551615 3057148 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 781 313 238 54 0 91 0

[startup+0.034551 s]
/proc/loadavg: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=3392 CPUtime=0.03 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 472 0 0 0 3 0 0 0 25 0 1 0 268117811 3473408 411 33554432000 134512640 134731564 4293498896 18446744073709551615 134669095 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 848 411 269 54 0 158 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3392

[startup+0.100544 s]
/proc/loadavg: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=3524 CPUtime=0.09 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 509 0 0 0 9 0 0 0 25 0 1 0 268117811 3608576 448 33554432000 134512640 134731564 4293498896 18446744073709551615 134715894 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 881 448 269 54 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3524

[startup+0.300496 s]
/proc/loadavg: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=3920 CPUtime=0.29 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 582 0 0 0 29 0 0 0 25 0 1 0 268117811 4014080 521 33554432000 134512640 134731564 4293498896 18446744073709551615 134659898 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 980 521 269 54 0 290 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3920

[startup+0.700421 s]
/proc/loadavg: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=4052 CPUtime=0.69 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 638 0 0 0 69 0 0 0 25 0 1 0 268117811 4149248 577 33554432000 134512640 134731564 4293498896 18446744073709551615 134715359 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 1013 577 269 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+0.900384 s]
/proc/loadavg: 3.62 3.88 3.73 5/189 12593
/proc/meminfo: memFree=21149428/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=4184 CPUtime=0.89 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 678 0 0 0 89 0 0 0 25 0 1 0 268117811 4284416 617 33554432000 134512640 134731564 4293498896 18446744073709551615 134607389 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 1046 617 272 54 0 356 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4184

[startup+1.00038 s]
/proc/loadavg: 3.62 3.88 3.73 5/190 12594
/proc/meminfo: memFree=21148376/32951124 swapFree=67111528/67111528
[pid=12593] ppid=12591 vsize=4188 CPUtime=1 cores=1,3
/proc/12593/stat : 12593 (MPhaseSAT) R 12591 12593 12344 0 -1 4202496 680 0 0 0 100 0 0 0 25 0 1 0 268117811 4288512 618 33554432000 134512640 134731564 4293498896 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12593/statm: 1047 618 272 54 0 357 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 4188

Child status: 10
Real time (s): 1.00648
CPU time (s): 1.00485
CPU user time (s): 1.00385
CPU system time (s): 0.000999
CPU usage (%): 99.8372
Max. virtual memory (cumulated for all children) (KiB): 4188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00385
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= 688
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 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-02 17:10:22
IDJOB=3094453
IDBENCH=82935
IDSOLVER=1520
FILE ID=node141/3094453-1301757022
RUNJOBID= node141-1301757016-12364
PBS_JOBID= 12841070
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S386464511-018.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094453-1301757022/watcher-3094453-1301757022 -o /tmp/evaluation-result-3094453-1301757022/solver-3094453-1301757022 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094453-1301757022.cnf

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

MD5SUM BENCH= 988859f9794bcb4984b591f0d8d2fa91
RANDOM SEED=59950856

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.84
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:      21149576 kB
Buffers:        346628 kB
Cached:       11124120 kB
SwapCached:          0 kB
Active:        7465116 kB
Inactive:      4074384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21149576 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2016 kB
Writeback:           0 kB
AnonPages:       69108 kB
Mapped:          16896 kB
Slab:           197488 kB
PageTables:       5256 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   248988 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= 71880 MiB
End job on node141 at 2011-04-02 17:10:23