Trace number 1807104

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
kw_pre 2009-03-21SAT 0.094985 0.095636

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n17himBHm20-p0-q146.cnf
MD5SUMa888f7c11818f92eb0f40bc8ce26728a
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003998
Satisfiable
(Un)Satisfiability was proved
Number of variables340
Number of clauses5967
Sum of the clauses size12240
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 25950
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 517

Solver Data 

0.05/0.09	This is MiniSat 2.0 beta
0.05/0.09	WARNING: for repeatability, setting FPU to use double precision
0.05/0.09	============================[ Problem Statistics ]=============================
0.05/0.09	|                                                                             |
0.05/0.09	|  Number of variables:  340                                                  |
0.05/0.09	|  Number of clauses:    340                                                  |
0.05/0.09	|  Parsing time:         0.00         s                                       |
0.05/0.09	============================[ Search Statistics ]==============================
0.05/0.09	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.05/0.09	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.05/0.09	===============================================================================
0.05/0.09	|         0 |       0        0        0 |        0        0    nan |  0.000 % |
0.05/0.09	===============================================================================
0.05/0.09	restarts              : 1
0.05/0.09	conflicts             : 0              (0 /sec)
0.05/0.09	decisions             : 1              (0.00 % random) (1001 /sec)
0.05/0.09	propagations          : 340            (340340 /sec)
0.05/0.09	conflict literals     : 0              ( nan % deleted)
0.05/0.09	Memory used           : 1.85 MB
0.05/0.09	CPU time              : 0.000999 s
0.05/0.09	
0.05/0.09	SATISFIABLE
0.05/0.09	s SATISFIABLE
0.05/0.09	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 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-1807104-1242155029/watcher-1807104-1242155029 -o /tmp/evaluation-result-1807104-1242155029/solver-1807104-1242155029 -C 1200 -W 1800 -M 1800 HOME/kw_pre HOME/instance-1807104-1242155029.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: 1.00 1.00 0.95 3/64 15055
/proc/meminfo: memFree=1114848/2055920 swapFree=4178620/4192956
[pid=15055] ppid=15053 vsize=5356 CPUtime=0
/proc/15055/stat : 15055 (kw_pre) R 15053 15055 14283 0 -1 4194304 262 0 0 0 0 0 0 0 18 0 1 0 243530941 5484544 230 1992294400 4194304 4889804 548682068832 18446744073709551615 221954763423 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/15055/statm: 1339 230 191 169 0 50 0
[pid=15056] ppid=15055 vsize=2876 CPUtime=0
/proc/15056/stat : 15056 (kw_preprocessor) R 15055 15055 14283 0 -1 0 332 0 0 0 0 0 0 0 18 0 1 0 243530941 2945024 308 1992294400 4194304 6416590 548682068912 18446744073709551615 5489867 0 0 4096 0 0 0 0 17 0 0 0
/proc/15056/statm: 719 308 215 542 0 168 0

[startup+0.0607469 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 15055
/proc/meminfo: memFree=1114848/2055920 swapFree=4178620/4192956
[pid=15055] ppid=15053 vsize=5356 CPUtime=0
/proc/15055/stat : 15055 (kw_pre) S 15053 15055 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243530941 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15055/statm: 1339 231 192 169 0 50 0
[pid=15056] ppid=15055 vsize=3560 CPUtime=0.05
/proc/15056/stat : 15056 (kw_preprocessor) R 15055 15055 14283 0 -1 0 553 0 0 0 5 0 0 0 19 0 1 0 243530941 3645440 529 1992294400 4194304 6416590 548682068912 18446744073709551615 4567218 0 0 4096 0 0 0 0 17 0 0 0
/proc/15056/statm: 890 529 242 542 0 339 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8916

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

[startup+0.0607469 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 15055
/proc/meminfo: memFree=1114848/2055920 swapFree=4178620/4192956
[pid=15055] ppid=15053 vsize=5356 CPUtime=0
/proc/15055/stat : 15055 (kw_pre) S 15053 15055 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243530941 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15055/statm: 1339 231 192 169 0 50 0
[pid=15056] ppid=15055 vsize=3560 CPUtime=0.05
/proc/15056/stat : 15056 (kw_preprocessor) R 15055 15055 14283 0 -1 0 553 0 0 0 5 0 0 0 19 0 1 0 243530941 3645440 529 1992294400 4194304 6416590 548682068912 18446744073709551615 4567218 0 0 4096 0 0 0 0 17 0 0 0
/proc/15056/statm: 890 529 242 542 0 339 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8916

Child status: 0
Real time (s): 0.095636
CPU time (s): 0.094985
CPU user time (s): 0.088986
CPU system time (s): 0.005999
CPU usage (%): 99.3193
Max. virtual memory (cumulated for all children) (KiB): 8916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.088986
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1218
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= 11
involuntary context switches= 28

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-12 21:03:49
IDJOB=1807104
IDBENCH=71186
IDSOLVER=646
FILE ID=node43/1807104-1242155029
PBS_JOBID= 9289680
Free space on /tmp= 66184 MiB

SOLVER NAME= kw_pre 2009-03-21
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n17himBHm20-p0-q146.cnf
COMMAND LINE= HOME/kw_pre BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1807104-1242155029/watcher-1807104-1242155029 -o /tmp/evaluation-result-1807104-1242155029/solver-1807104-1242155029 -C 1200 -W 1800 -M 1800  HOME/kw_pre HOME/instance-1807104-1242155029.cnf

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

MD5SUM BENCH= a888f7c11818f92eb0f40bc8ce26728a
RANDOM SEED=504927008

node43.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		: 3000.237
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		: 3000.237
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:       1115328 kB
Buffers:         60916 kB
Cached:         793676 kB
SwapCached:       8124 kB
Active:          93000 kB
Inactive:       772072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1115328 kB
SwapTotal:     4192956 kB
SwapFree:      4178620 kB
Dirty:            3080 kB
Writeback:           0 kB
Mapped:          14040 kB
Slab:            61520 kB
Committed_AS:   947424 kB
PageTables:       1444 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= 66180 MiB
End job on node43 at 2009-05-12 21:03:49