Trace number 1784625

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
MXC 2009-03-10SAT 16.5165 16.522

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-20-152-18-95.cnf
MD5SUMc56a1400f0bd9306a380dfa6653baa1d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark12.2201
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses15466
Sum of the clauses size31256
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215448
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 518

Solver Data 

16.49/16.52	c starting MXC with:
16.49/16.52	c cnf_path = HOME/instance-1784625-1241956630.cnf
16.49/16.52	c restart_strategy = auto
16.49/16.52	c sign_strategy = cached
16.49/16.52	c use_preprocessing = -1
16.49/16.52	c output_implicant = 1
16.49/16.52	c timeout_seconds = 0
16.49/16.52	c running SatELite... done
16.49/16.52	c 20 vars eliminated
16.49/16.52	c received 0 units and 14986 clauses from SatELite
16.49/16.52	c 19 assignments made, starting to guess now
16.49/16.52	c ===================================[MXC]=====================================
16.49/16.52	c | Conflicts |                Clause Statistics                   |   Vars   |
16.49/16.52	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
16.49/16.52	c =============================================================================
16.49/16.52	c |         0 |       0   14614      372        0        0     nan |      360 |
16.49/16.52	c |       100 |       0   14614      372      100     1050    62.3 |      341 |
16.49/16.52	c |       210 |       0   14614      372      210     1105    62.1 |      341 |
16.49/16.52	c |       441 |       0   14614      372      441     1220    62.0 |      341 |
16.49/16.52	c |       805 |       0   14614      372      805     1402    60.0 |      341 |
16.49/16.52	c |      1315 |       0   14614      372     1315     1657    60.2 |      341 |
16.49/16.52	c |      1986 |       0   14614      372     1986     1993    57.7 |      341 |
16.49/16.52	c |      2834 |       0   14614      372     1841     2417    53.1 |      341 |
16.49/16.52	c |      3876 |       0   14614      372     2883     2938    51.8 |      341 |
16.49/16.52	c |      5132 |       0   14614      372     2642     3566    59.4 |      341 |
16.49/16.52	c |      6623 |       0   14614      372     4133     4311    63.0 |      341 |
16.49/16.52	c |      8373 |       0   14614      372     3648     5186    66.0 |      341 |
16.49/16.52	c |     10408 |       0   14614      372     5683     5833    68.2 |      341 |
16.49/16.52	c |     12756 |       0   14614      372     5117     6114    71.8 |      341 |
16.49/16.52	c |     15449 |       0   14614      372     4703     6392    73.3 |      341 |
16.49/16.52	c |     18521 |       0   14614      372     4503     6667    70.6 |      341 |
16.49/16.52	c |     22010 |       0   14614      372     4574     6940    66.3 |      341 |
16.49/16.52	c |     25958 |       0   14614      372     4962     7212    57.6 |      341 |
16.49/16.52	c |     30411 |       0   14614      372     5733     7484    70.5 |      341 |
16.49/16.52	c |     35419 |       0   14614      372     6954     7755    75.4 |      341 |
16.49/16.52	c |     41038 |       0   14614      372     4698     8027    68.3 |      341 |
16.49/16.52	c |     47329 |       0   14614      372     6909     8299    70.0 |      341 |
16.49/16.52	c |     54360 |       0   14614      372     5506     8573    71.8 |      341 |
16.49/16.52	c |     62205 |       0   14614      372     4602     8848    68.4 |      341 |
16.49/16.52	c |     70945 |       0   14614      372     8847     9125    71.9 |      341 |
16.49/16.52	c |     80669 |       0   14614      372     9374     9404    71.3 |      341 |
16.49/16.52	c |     91476 |       0   14614      372     5895     9685    76.2 |      341 |
16.49/16.52	c |     93205 |       0   14614      372     7624     9728    77.4 |      341 |
16.49/16.52	c ----- stats for thread 0 -----
16.49/16.52	c restarts: 335
16.49/16.52	c decisions: 142972
16.49/16.52	c propagations: 4460855
16.49/16.52	c conflicts: 93205
16.49/16.52	c 16.519s elapsed
16.49/16.52	s SATISFIABLE
16.49/16.52	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 0

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-1784625-1241956630/watcher-1784625-1241956630 -o /tmp/evaluation-result-1784625-1241956630/solver-1784625-1241956630 -C 5000 -W 6000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1784625-1241956630.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.88 0.97 0.99 3/65 19839
/proc/meminfo: memFree=1778880/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=1424 CPUtime=0
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 227 0 0 0 0 0 0 0 20 0 1 0 223692339 1458176 213 1992294400 134512640 135192793 4294956224 18446744073709551615 134577000 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 356 213 54 166 0 187 0

[startup+0.0244049 s]
/proc/loadavg: 0.88 0.97 0.99 3/65 19839
/proc/meminfo: memFree=1778880/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=1708 CPUtime=0.02
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 347 0 0 0 2 0 0 0 20 0 1 0 223692339 1748992 289 1992294400 134512640 135192793 4294956224 18446744073709551615 134568017 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 427 289 55 166 0 258 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1708

[startup+0.101414 s]
/proc/loadavg: 0.88 0.97 0.99 3/65 19839
/proc/meminfo: memFree=1778880/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=2044 CPUtime=0.09
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 427 0 0 0 9 0 0 0 20 0 1 0 223692339 2093056 369 1992294400 134512640 135192793 4294956224 18446744073709551615 134573789 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 511 369 56 166 0 342 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2044

[startup+0.301433 s]
/proc/loadavg: 0.88 0.97 0.99 3/65 19839
/proc/meminfo: memFree=1778880/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=2968 CPUtime=0.29
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 673 0 0 0 29 0 0 0 22 0 1 0 223692339 3039232 615 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 742 615 73 166 0 573 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2968

[startup+0.701475 s]
/proc/loadavg: 0.88 0.97 0.99 3/65 19839
/proc/meminfo: memFree=1778880/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=4184 CPUtime=0.69
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 969 0 0 0 69 0 0 0 25 0 1 0 223692339 4284416 911 1992294400 134512640 135192793 4294956224 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 1046 911 73 166 0 877 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4184

[startup+1.50156 s]
/proc/loadavg: 0.88 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1774648/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=5412 CPUtime=1.49
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 1275 0 0 0 149 0 0 0 25 0 1 0 223692339 5541888 1217 1992294400 134512640 135192793 4294956224 18446744073709551615 134534243 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 1353 1217 73 166 0 1184 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5412

[startup+3.10172 s]
/proc/loadavg: 0.88 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1773752/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=6296 CPUtime=3.09
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 1452 0 0 0 309 0 0 0 25 0 1 0 223692339 6447104 1394 1992294400 134512640 135192793 4294956224 18446744073709551615 134534224 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 1574 1394 73 166 0 1405 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6296

[startup+6.30105 s]
/proc/loadavg: 0.89 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1772152/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=7712 CPUtime=6.29
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 1803 0 0 0 628 1 0 0 25 0 1 0 223692339 7897088 1745 1992294400 134512640 135192793 4294956224 18446744073709551615 134533904 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 1928 1745 73 166 0 1759 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7712

[startup+12.7017 s]
/proc/loadavg: 0.90 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1770816/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=9360 CPUtime=12.69
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 2129 0 0 0 1268 1 0 0 25 0 1 0 223692339 9584640 2071 1992294400 134512640 135192793 4294956224 18446744073709551615 134533888 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 2340 2071 73 166 0 2171 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 9360

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

[startup+14.3059 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1770624/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=9360 CPUtime=14.29
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 2149 0 0 0 1428 1 0 0 25 0 1 0 223692339 9584640 2091 1992294400 134512640 135192793 4294956224 18446744073709551615 134534120 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 2340 2091 73 166 0 2171 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 9360

[startup+15.9011 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1770368/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=9852 CPUtime=15.89
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 2253 0 0 0 1588 1 0 0 25 0 1 0 223692339 10088448 2195 1992294400 134512640 135192793 4294956224 18446744073709551615 134533900 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 2463 2195 73 166 0 2294 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 9852

[startup+16.3011 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1770368/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=9852 CPUtime=16.29
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 2254 0 0 0 1628 1 0 0 25 0 1 0 223692339 10088448 2196 1992294400 134512640 135192793 4294956224 18446744073709551615 134533917 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 2463 2196 73 166 0 2294 0
Current children cumulated CPU time (s) 16.29
Current children cumulated vsize (KiB) 9852

[startup+16.5051 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 19840
/proc/meminfo: memFree=1770176/2055924 swapFree=4181596/4192956
[pid=19839] ppid=19837 vsize=9852 CPUtime=16.49
/proc/19839/stat : 19839 (mxc-sat09) R 19837 19839 19771 0 -1 4194304 2255 0 0 0 1648 1 0 0 25 0 1 0 223692339 10088448 2197 1992294400 134512640 135192793 4294956224 18446744073709551615 134533892 0 0 4096 0 0 0 0 17 1 0 0
/proc/19839/statm: 2463 2197 73 166 0 2294 0
Current children cumulated CPU time (s) 16.49
Current children cumulated vsize (KiB) 9852

Child status: 10
Real time (s): 16.522
CPU time (s): 16.5165
CPU user time (s): 16.5005
CPU system time (s): 0.015997
CPU usage (%): 99.9667
Max. virtual memory (cumulated for all children) (KiB): 9852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.5005
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2258
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= 44

runsolver used 0.022996 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node83 at 2009-05-10 13:57:10
IDJOB=1784625
IDBENCH=71801
IDSOLVER=613
FILE ID=node83/1784625-1241956630
PBS_JOBID= 9265121
Free space on /tmp= 66164 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784625-1241956630/watcher-1784625-1241956630 -o /tmp/evaluation-result-1784625-1241956630/solver-1784625-1241956630 -C 5000 -W 6000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1784625-1241956630.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=1176982064

node83.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		: 3000.222
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		: 3000.222
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1779296 kB
Buffers:         53044 kB
Cached:         158436 kB
SwapCached:       5508 kB
Active:         124872 kB
Inactive:        94656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1779296 kB
SwapTotal:     4192956 kB
SwapFree:      4181596 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:          13648 kB
Slab:            43040 kB
Committed_AS:   718000 kB
PageTables:       1384 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= 66164 MiB
End job on node83 at 2009-05-10 13:57:27