Trace number 1736186

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
ttsth-5-0 2009-03-19SAT 0.19297 0.193124

General information on the benchmark

NameCRAFTED/sgi/
sgi-difficult4.cnf
MD5SUM7c37bfaa2d3bc1d2ca8c28e73d9bfb79
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables483
Number of clauses15156
Sum of the clauses size30753
Maximum clause length23
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215135
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 521

Solver Data 

0.00/0.02	c Command: HOME/ttsth-5-0 -num-threads 2 HOME/instance-1736186-1240810595.cnf 
0.00/0.02	c Using SATTIMEOUT of 1200
0.00/0.02	c Using SATRAM of 1800
0.00/0.02	c Size of subset node = 16
0.00/0.02	c Variables = 483
0.00/0.02	c Clauses = 15156
0.00/0.02	c Literals = 30753
0.00/0.02	c Reduced size:
0.00/0.02	c Variables = 483
0.00/0.02	c Clauses = 15156
0.00/0.02	c Literals = 30753
0.00/0.02	c a2
0.00/0.04	c a1
0.09/0.11	c Independent sub-problems = 1
0.09/0.11	c Sub-problem with 483 variables and 15156 clauses
0.09/0.11	c using permutation method 4
0.09/0.11	c count = 1
0.09/0.11	c Ordering finished 0.100 seconds
0.09/0.11	c mapped 0.100 seconds
0.09/0.11	c permuted 0.100 seconds
0.09/0.11	c about to sort
0.09/0.11	c sorted
0.09/0.18	c clauses now 15156
0.09/0.18	c init finished 0.110 seconds
0.09/0.18	c tree built 0.180 seconds
0.09/0.18	c 
0.09/0.18	c PA progress                      | CPU progress Partial assignments | improvements      CPU time        PA/sec        nodes
0.09/0.18	c ---------------------------------|----------------------------------|------------------------------------------------------
0.09/0.18	c ................................ | ..........                       |                        0.2           0.0             
0.09/0.18	c ................................ | ..........                     1 |                        0.2           5.6             
0.09/0.18	c ................................ | ..........                     2 |                        0.2          11.1             
0.09/0.18	c ................................ | ..........                     3 |                        0.2          16.7             
0.09/0.18	c ................................ | ..........                     4 |                        0.2          22.2             
0.09/0.18	c ................................ | ..........                     5 |                        0.2          27.8             
0.09/0.19	c Partial assignments = 421, improvements = 0  PA/sec = 2338.89, subset nodes = 386
0.09/0.19	s SATISFIABLE
0.09/0.19	v -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 
0.09/0.19	v -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 
0.09/0.19	v -21 -22 23 24 -25 -26 -27 -28 -29 -30 
0.09/0.19	v -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 
0.09/0.19	v -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 
0.09/0.19	v -51 -52 -53 -54 -55 -56 57 -58 -59 -60 
0.09/0.19	v -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 
0.09/0.19	v -71 -72 73 -74 -75 -76 -77 -78 -79 -80 
0.09/0.19	v -81 -82 -83 -84 -85 -86 -87 -88 -89 -90 
0.09/0.19	v -91 -92 -93 -94 -95 -96 -97 -98 -99 -100 
0.09/0.19	v -101 -102 -103 -104 -105 -106 -107 -108 -109 -110 
0.09/0.19	v -111 -112 -113 114 -115 -116 -117 -118 -119 -120 
0.09/0.19	v -121 -122 -123 -124 -125 -126 -127 -128 -129 -130 
0.09/0.19	v -131 132 -133 -134 -135 -136 -137 -138 -139 -140 
0.09/0.19	v -141 -142 143 -144 -145 -146 -147 -148 -149 -150 
0.09/0.19	v -151 -152 -153 -154 -155 -156 -157 -158 -159 -160 
0.09/0.19	v -161 -162 -163 164 -165 -166 -167 -168 -169 -170 
0.09/0.19	v -171 -172 -173 -174 -175 -176 -177 -178 -179 -180 
0.09/0.19	v -181 -182 -183 -184 -185 -186 -187 -188 -189 -190 
0.09/0.19	v -191 -192 -193 194 -195 -196 -197 -198 -199 -200 
0.09/0.19	v -201 -202 -203 -204 -205 -206 -207 -208 -209 -210 
0.09/0.19	v -211 -212 -213 -214 -215 -216 -217 -218 -219 -220 
0.09/0.19	v -221 222 -223 -224 -225 -226 -227 -228 -229 -230 
0.09/0.19	v -231 -232 -233 -234 -235 -236 -237 -238 239 -240 
0.09/0.19	v -241 -242 -243 -244 -245 -246 -247 -248 -249 -250 
0.09/0.19	v -251 -252 -253 -254 -255 -256 -257 -258 -259 -260 
0.09/0.19	v -261 -262 -263 -264 -265 -266 -267 -268 269 -270 
0.09/0.19	v -271 -272 -273 -274 -275 -276 -277 -278 -279 -280 
0.09/0.19	v -281 -282 -283 -284 -285 -286 -287 -288 -289 -290 
0.09/0.19	v -291 -292 -293 -294 -295 -296 297 -298 -299 -300 
0.09/0.19	v -301 -302 -303 -304 -305 -306 -307 -308 -309 -310 
0.09/0.19	v -311 -312 -313 -314 -315 -316 -317 318 -319 -320 
0.09/0.19	v -321 -322 -323 324 -325 -326 -327 -328 -329 -330 
0.09/0.19	v -331 -332 -333 -334 -335 -336 -337 -338 -339 -340 
0.09/0.19	v -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 
0.09/0.19	v -351 352 -353 -354 -355 -356 -357 -358 -359 -360 
0.09/0.19	v -361 -362 -363 -364 -365 -366 -367 -368 -369 -370 
0.09/0.19	v -371 -372 -373 -374 -375 -376 -377 -378 -379 -380 
0.09/0.19	v -381 -382 -383 -384 -385 -386 -387 388 -389 -390 
0.09/0.19	v -391 -392 -393 -394 -395 -396 -397 -398 399 -400 
0.09/0.19	v -401 -402 -403 -404 -405 -406 -407 -408 -409 -410 
0.09/0.19	v -411 -412 -413 -414 -415 -416 -417 -418 -419 -420 
0.09/0.19	v -421 -422 -423 -424 -425 -426 -427 428 -429 -430 
0.09/0.19	v -431 -432 -433 -434 -435 -436 -437 -438 -439 -440 
0.09/0.19	v -441 -442 443 -444 -445 -446 -447 -448 -449 -450 
0.09/0.19	v -451 -452 -453 -454 -455 -456 -457 -458 -459 -460 
0.09/0.19	v -461 -462 -463 -464 -465 -466 -467 -468 -469 -470 
0.09/0.19	v -471 -472 473 -474 -475 -476 -477 -478 -479 -480 
0.09/0.19	v -481 -482 -483 0
0.09/0.19	c CPU time = 0.18 seconds
0.09/0.19	c Elapsed time = 1 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1736186-1240810595/watcher-1736186-1240810595 -o /tmp/evaluation-result-1736186-1240810595/solver-1736186-1240810595 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/ttsth-5-0 -num-threads 2 HOME/instance-1736186-1240810595.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30529
/proc/meminfo: memFree=1605544/2055920 swapFree=4180724/4192956
[pid=30529] ppid=30527 vsize=1064 CPUtime=0
/proc/30529/stat : 30529 (ttsth-5-0) R 30527 30529 29930 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 109093046 1089536 133 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/30529/statm: 266 133 77 176 0 88 0

[startup+0.060074 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30529
/proc/meminfo: memFree=1605544/2055920 swapFree=4180724/4192956
[pid=30529] ppid=30527 vsize=2548 CPUtime=0.05
/proc/30529/stat : 30529 (ttsth-5-0) R 30527 30529 29930 0 -1 4194304 537 0 0 0 5 0 0 0 18 0 1 0 109093046 2609152 520 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/30529/statm: 637 521 80 176 0 459 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2548

[startup+0.101078 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30529
/proc/meminfo: memFree=1605544/2055920 swapFree=4180724/4192956
[pid=30529] ppid=30527 vsize=3076 CPUtime=0.09
/proc/30529/stat : 30529 (ttsth-5-0) R 30527 30529 29930 0 -1 4194304 646 0 0 0 9 0 0 0 18 0 1 0 109093046 3149824 629 1992294400 134512640 135237372 4294956192 18446744073709551615 134555272 0 0 4096 0 0 0 0 17 1 0 0
/proc/30529/statm: 769 629 80 176 0 591 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3076

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

Child status: 10
Real time (s): 0.193124
CPU time (s): 0.19297
CPU user time (s): 0.182972
CPU system time (s): 0.009998
CPU usage (%): 99.9202
Max. virtual memory (cumulated for all children) (KiB): 3076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.182972
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1378
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= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node23 at 2009-04-27 07:36:35
IDJOB=1736186
IDBENCH=71616
IDSOLVER=549
FILE ID=node23/1736186-1240810595
PBS_JOBID= 9187440
Free space on /tmp= 66320 MiB

SOLVER NAME= ttsth-5-0 2009-03-19
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult4.cnf
COMMAND LINE= HOME/ttsth-5-0 -num-threads MAXNBTHREAD BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736186-1240810595/watcher-1736186-1240810595 -o /tmp/evaluation-result-1736186-1240810595/solver-1736186-1240810595 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/ttsth-5-0 -num-threads 2 HOME/instance-1736186-1240810595.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= 7c37bfaa2d3bc1d2ca8c28e73d9bfb79
RANDOM SEED=987083827

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1606024 kB
Buffers:         60068 kB
Cached:         331612 kB
SwapCached:       6256 kB
Active:         164492 kB
Inactive:       235728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1606024 kB
SwapTotal:     4192956 kB
SwapFree:      4180724 kB
Dirty:            1520 kB
Writeback:           0 kB
Mapped:          14064 kB
Slab:            35684 kB
Committed_AS:   495624 kB
PageTables:       1388 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66320 MiB
End job on node23 at 2009-04-27 07:36:36