Trace number 1738276

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
NCVWr 2009-03-22SAT 43.6864 43.6971

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-22-173-20-80.cnf
MD5SUMfcc3fcd52c921ace90c257c57bbc4b6d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.064989
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses22276
Sum of the clauses size44952
Maximum clause length22
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 222256
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 520

Solver Data 

43.58/43.69	c try 1 flip j 6950946
43.58/43.69	c A solution is found
43.58/43.69	s SATISFIABLE
43.58/43.69	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 -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 -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 
43.58/43.69	v 0 
43.58/43.69	c Done (mycputime is 43.580 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-1738276-1240836870/watcher-1738276-1240836870 -o /tmp/evaluation-result-1738276-1240836870/solver-1738276-1240836870 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1738276-1240836870.cnf 2144065968 

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: 0.99 0.97 0.99 3/64 754
/proc/meminfo: memFree=1758624/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=411884 CPUtime=0
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 111714486 421769216 108 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 102971 108 55 146 0 101846 0

[startup+0.062839 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 754
/proc/meminfo: memFree=1758624/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=412936 CPUtime=0.06
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 453 0 0 0 6 0 0 0 18 0 1 0 111714486 422846464 437 1992294400 134512640 135113558 4294956208 18446744073709551615 134526313 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 103234 437 55 146 0 102109 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 412936

[startup+0.101841 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 754
/proc/meminfo: memFree=1758624/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=412936 CPUtime=0.09
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 453 0 0 0 9 0 0 0 18 0 1 0 111714486 422846464 437 1992294400 134512640 135113558 4294956208 18446744073709551615 134526484 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 103234 437 55 146 0 102109 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 412936

[startup+0.301853 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 754
/proc/meminfo: memFree=1758624/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=0.29
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 675 0 0 0 29 0 0 0 19 0 1 0 111714486 427339776 659 1992294400 134512640 135113558 4294956208 18446744073709551615 134520650 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 659 58 146 0 103206 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 417324

[startup+0.70188 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 754
/proc/meminfo: memFree=1758624/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=0.69
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 675 0 0 0 69 0 0 0 22 0 1 0 111714486 427339776 659 1992294400 134512640 135113558 4294956208 18446744073709551615 134532010 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 659 58 146 0 103206 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 417324

[startup+1.50193 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1756056/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=1.49
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 675 0 0 0 149 0 0 0 25 0 1 0 111714486 427339776 659 1992294400 134512640 135113558 4294956208 18446744073709551615 134532650 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 659 58 146 0 103206 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 417324

[startup+3.10104 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755736/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=3.09
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 309 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134531124 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 417324

[startup+6.30125 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755736/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=6.29
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 629 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134532001 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 417324

[startup+12.7017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755800/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=12.69
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 1269 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134531998 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 417324

[startup+25.5015 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=25.49
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 2549 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134531968 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 417324

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

[startup+31.906 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=31.89
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 3189 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134534159 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 417324

[startup+38.3014 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=38.28
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 3828 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134530351 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 417324

[startup+41.5016 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=41.48
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 4148 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134534138 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 417324

[startup+42.3017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=42.28
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 4228 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134532046 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 42.28
Current children cumulated vsize (KiB) 417324

[startup+43.1017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=43.08
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 4308 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134535021 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 43.08
Current children cumulated vsize (KiB) 417324

[startup+43.5017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=43.48
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 4348 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134534184 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 43.48
Current children cumulated vsize (KiB) 417324

[startup+43.6018 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 755
/proc/meminfo: memFree=1755928/2055920 swapFree=4181756/4192956
[pid=754] ppid=752 vsize=417324 CPUtime=43.58
/proc/754/stat : 754 (NCVWr) R 752 754 511 0 -1 4194304 676 0 0 0 4358 0 0 0 25 0 1 0 111714486 427339776 660 1992294400 134512640 135113558 4294956208 18446744073709551615 134532549 0 0 4096 0 0 0 0 17 1 0 0
/proc/754/statm: 104331 660 58 146 0 103206 0
Current children cumulated CPU time (s) 43.58
Current children cumulated vsize (KiB) 417324

Child status: 10
Real time (s): 43.6971
CPU time (s): 43.6864
CPU user time (s): 43.6814
CPU system time (s): 0.004999
CPU usage (%): 99.9754
Max. virtual memory (cumulated for all children) (KiB): 417324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.6814
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 691
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= 2
involuntary context switches= 105

runsolver used 0.035994 second user time and 0.098984 second system time

The end

Launcher Data 

Begin job on node52 at 2009-04-27 14:54:30
IDJOB=1738276
IDBENCH=71804
IDSOLVER=531
FILE ID=node52/1738276-1240836870
PBS_JOBID= 9187540
Free space on /tmp= 66232 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-22-173-20-80.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738276-1240836870/watcher-1738276-1240836870 -o /tmp/evaluation-result-1738276-1240836870/solver-1738276-1240836870 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1738276-1240836870.cnf 2144065968

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fcc3fcd52c921ace90c257c57bbc4b6d
RANDOM SEED=2144065968

node52.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		: 3000.214
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		: 3000.214
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:       1759104 kB
Buffers:         35580 kB
Cached:         176416 kB
SwapCached:       5060 kB
Active:          28088 kB
Inactive:       191832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1759104 kB
SwapTotal:     4192956 kB
SwapFree:      4181756 kB
Dirty:            4836 kB
Writeback:           0 kB
Mapped:          13972 kB
Slab:            62860 kB
Committed_AS:   507880 kB
PageTables:       1476 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= 66228 MiB
End job on node52 at 2009-04-27 14:55:14