Trace number 1807635

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
minisat2-simp 070721SAT 27.6808 27.6885

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 benchmark0.788879
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 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  360                                                  |
0.00/0.00	|  Number of clauses:    15466                                                |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.09/0.10	============================[ Search Statistics ]==============================
0.09/0.10	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.10	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.10	===============================================================================
0.09/0.10	|         0 |     341    14986    38091 |     4995        0    nan |  0.000 % |
0.09/0.10	|       102 |     341    14986    38091 |     5494      102     73 |  0.001 % |
0.09/0.11	|       252 |     341    14986    38091 |     6044      252     79 |  0.001 % |
0.09/0.12	|       477 |     341    14986    38091 |     6648      477     86 |  0.001 % |
0.09/0.14	|       815 |     341    14986    38091 |     7313      815     86 |  0.001 % |
0.09/0.17	|      1321 |     341    14986    38091 |     8045     1321     82 |  0.001 % |
0.19/0.24	|      2081 |     341    14986    38091 |     8849     2081     83 |  0.001 % |
0.29/0.38	|      3221 |     341    14986    38091 |     9734     3221     81 |  0.001 % |
0.59/0.68	|      4929 |     341    14986    38091 |    10707     4929     80 |  0.001 % |
0.99/1.05	|      7493 |     341    14986    38091 |    11778     7493     79 |  0.001 % |
2.09/2.10	|     11337 |     341    14986    38091 |    12956    11337     81 |  0.001 % |
3.39/3.46	|     17107 |     341    14986    38091 |    14252    10525     79 |  0.001 % |
5.09/5.15	|     25756 |     341    14986    38091 |    15677    11952     77 |  0.001 % |
8.89/8.90	|     38730 |     341    14986    38091 |    17245     9124     75 |  0.001 % |
15.79/15.86	|     58191 |     341    14986    38091 |    18969    11110     78 |  0.001 % |
27.39/27.42	|     87383 |     341    14986    38091 |    20866    11552     82 |  0.001 % |
27.58/27.68	===============================================================================
27.58/27.68	restarts              : 16
27.58/27.68	conflicts             : 87885          (3177 /sec)
27.58/27.68	decisions             : 113295         (1.05 % random) (4096 /sec)
27.58/27.68	propagations          : 3646038        (131808 /sec)
27.58/27.68	conflict literals     : 7191292        (13.89 % deleted)
27.58/27.68	Memory used           : 11.88 MB
27.58/27.68	CPU time              : 27.6618 s
27.58/27.68	
27.58/27.68	s SATISFIABLE
27.58/27.68	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-1807635-1242159852/watcher-1807635-1242159852 -o /tmp/evaluation-result-1807635-1242159852/solver-1807635-1242159852 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1807635-1242159852.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 8149
/proc/meminfo: memFree=1827576/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=2188 CPUtime=0
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 219 0 0 0 0 0 0 0 18 0 1 0 244014830 2240512 204 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 547 204 65 178 0 367 0

[startup+0.036933 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 8149
/proc/meminfo: memFree=1827576/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=2960 CPUtime=0.03
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 411 0 0 0 3 0 0 0 18 0 1 0 244014830 3031040 396 1992294400 134512640 135243866 4294956256 18446744073709551615 134541936 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 740 396 81 178 0 560 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2960

[startup+0.10194 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 8149
/proc/meminfo: memFree=1827576/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=3124 CPUtime=0.09
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 471 0 0 0 9 0 0 0 18 0 1 0 244014830 3198976 456 1992294400 134512640 135243866 4294956256 18446744073709551615 134541941 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 781 456 81 178 0 601 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3124

[startup+0.301962 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 8149
/proc/meminfo: memFree=1827576/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=3588 CPUtime=0.29
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 638 0 0 0 29 0 0 0 20 0 1 0 244014830 3674112 586 1992294400 134512640 135243866 4294956256 18446744073709551615 134555822 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 897 586 86 178 0 717 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3588

[startup+0.702005 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 8149
/proc/meminfo: memFree=1827576/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=4652 CPUtime=0.69
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 884 0 0 0 69 0 0 0 24 0 1 0 244014830 4763648 832 1992294400 134512640 135243866 4294956256 18446744073709551615 134555804 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 1163 832 86 178 0 983 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4652

[startup+1.50109 s]
/proc/loadavg: 1.04 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1823728/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=6136 CPUtime=1.49
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 1273 0 0 0 149 0 0 0 25 0 1 0 244014830 6283264 1221 1992294400 134512640 135243866 4294956256 18446744073709551615 134555911 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 1534 1221 86 178 0 1354 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6136

[startup+3.10127 s]
/proc/loadavg: 1.04 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1821872/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=8016 CPUtime=3.09
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 1723 0 0 0 309 0 0 0 25 0 1 0 244014830 8208384 1671 1992294400 134512640 135243866 4294956256 18446744073709551615 134555792 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 2004 1671 86 178 0 1824 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8016

[startup+6.30162 s]
/proc/loadavg: 1.04 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1820528/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=8704 CPUtime=6.29
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 1890 0 0 0 629 0 0 0 25 0 1 0 244014830 8912896 1838 1992294400 134512640 135243866 4294956256 18446744073709551615 134555808 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 2176 1838 86 178 0 1996 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8704

[startup+12.7013 s]
/proc/loadavg: 1.03 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1819184/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=10184 CPUtime=12.69
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2261 0 0 0 1268 1 0 0 25 0 1 0 244014830 10428416 2209 1992294400 134512640 135243866 4294956256 18446744073709551615 134555883 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 2546 2209 86 178 0 2366 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 10184

[startup+25.5017 s]
/proc/loadavg: 1.03 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1817072/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=11856 CPUtime=25.48
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2677 0 0 0 2547 1 0 0 25 0 1 0 244014830 12140544 2625 1992294400 134512640 135243866 4294956256 18446744073709551615 134555813 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 2964 2625 86 178 0 2784 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11856

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

[startup+26.3018 s]
/proc/loadavg: 1.03 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1816944/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=12016 CPUtime=26.29
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2705 0 0 0 2628 1 0 0 25 0 1 0 244014830 12304384 2653 1992294400 134512640 135243866 4294956256 18446744073709551615 134555834 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 3004 2653 86 178 0 2824 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 12016

[startup+27.1019 s]
/proc/loadavg: 1.03 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1816944/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=12160 CPUtime=27.08
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2724 0 0 0 2707 1 0 0 25 0 1 0 244014830 12451840 2672 1992294400 134512640 135243866 4294956256 18446744073709551615 134568464 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 3040 2672 86 178 0 2860 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 12160

[startup+27.506 s]
/proc/loadavg: 1.02 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1816880/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=12160 CPUtime=27.49
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2724 0 0 0 2748 1 0 0 25 0 1 0 244014830 12451840 2672 1992294400 134512640 135243866 4294956256 18446744073709551615 134555920 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 3040 2672 86 178 0 2860 0
Current children cumulated CPU time (s) 27.49
Current children cumulated vsize (KiB) 12160

[startup+27.602 s]
/proc/loadavg: 1.02 1.01 1.00 2/66 8150
/proc/meminfo: memFree=1816880/2055920 swapFree=4181592/4192956
[pid=8149] ppid=8147 vsize=12160 CPUtime=27.58
/proc/8149/stat : 8149 (minisat_static) R 8147 8149 8046 0 -1 4194304 2724 0 0 0 2757 1 0 0 25 0 1 0 244014830 12451840 2672 1992294400 134512640 135243866 4294956256 18446744073709551615 134555757 0 0 4096 3 0 0 0 17 1 0 0
/proc/8149/statm: 3040 2672 86 178 0 2860 0
Current children cumulated CPU time (s) 27.58
Current children cumulated vsize (KiB) 12160

Child status: 10
Real time (s): 27.6885
CPU time (s): 27.6808
CPU user time (s): 27.6618
CPU system time (s): 0.018997
CPU usage (%): 99.9722
Max. virtual memory (cumulated for all children) (KiB): 12160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.6618
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2735
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= 45

runsolver used 0.035994 second user time and 0.06499 second system time

The end

Launcher Data 

Begin job on node86 at 2009-05-12 22:24:12
IDJOB=1807635
IDBENCH=71801
IDSOLVER=568
FILE ID=node86/1807635-1242159852
PBS_JOBID= 9289747
Free space on /tmp= 66188 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1807635-1242159852/watcher-1807635-1242159852 -o /tmp/evaluation-result-1807635-1242159852/solver-1807635-1242159852 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1807635-1242159852.cnf

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

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=778443708

node86.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		: 3000.213
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		: 3000.213
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:      2055920 kB
MemFree:       1828056 kB
Buffers:         28164 kB
Cached:         133576 kB
SwapCached:       5472 kB
Active:          27216 kB
Inactive:       143084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1828056 kB
SwapTotal:     4192956 kB
SwapFree:      4181592 kB
Dirty:             992 kB
Writeback:           0 kB
Mapped:          14228 kB
Slab:            43452 kB
Committed_AS:   904196 kB
PageTables:       1464 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= 66184 MiB
End job on node86 at 2009-05-12 22:24:40