Trace number 1784318

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
precosat 236SAT 0.072988 0.0779981

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 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1784318-1241934889.cnf
0.00/0.00	c found header 'p cnf 340 5967'
0.00/0.01	c finished parsing
0.00/0.01	c
0.00/0.01	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.01	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.01	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.01	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.01	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.01	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.01	c
0.00/0.01	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.01	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.01	c
0.00/0.01	c starting search after 0.0 seconds
0.00/0.01	c no decision limit
0.00/0.01	c
0.00/0.01	c       original/binary      fixed     eliminated      learned       agility
0.00/0.01	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.01	c
0.00/0.01	c *    0.0     5967     340      0     0      0       0      0    0.0   0    0
0.05/0.07	c s    0.1     5627     323      0     0     17       0      0    0.0   0    0
0.05/0.07	c l    0.1     5627     323      0     0     17       0   1000    0.0   0    0
0.05/0.07	c 1    0.1     5627     323      0     0     17       0      0   93.0   0    0
0.05/0.07	c
0.05/0.07	s SATISFIABLE
0.05/0.07	v 1 -2 -3 -4 -5 -6 -7
0.05/0.07	v -8 -9 -10 -11 -12 -13 -14 -15
0.05/0.07	v -16 -17 -18 -19 -20 -21 -22 -23
0.05/0.07	v -24 -25 -26 -27 -28 -29 -30 -31
0.05/0.07	v -32 -33 -34 -35 -36 -37 -38 -39
0.05/0.07	v 40 -41 -42 -43 -44 -45 -46 -47
0.05/0.07	v -48 -49 -50 -51 -52 -53 -54 -55
0.05/0.07	v -56 -57 -58 59 -60 -61 -62 -63
0.05/0.07	v -64 -65 -66 -67 -68 -69 -70 -71
0.05/0.07	v -72 -73 -74 -75 -76 -77 78 -79
0.05/0.07	v -80 -81 -82 -83 -84 -85 -86 -87
0.05/0.07	v -88 -89 -90 -91 -92 -93 -94 -95
0.05/0.07	v -96 97 -98 -99 -100 -101 -102 -103
0.05/0.07	v -104 -105 -106 -107 -108 -109 -110 -111
0.05/0.07	v -112 -113 -114 -115 116 -117 -118 -119
0.05/0.07	v -120 -121 -122 -123 -124 -125 -126 -127
0.05/0.07	v -128 -129 -130 -131 -132 -133 -134 135
0.05/0.07	v -136 -137 -138 -139 -140 -141 -142 -143
0.05/0.07	v -144 -145 -146 -147 -148 -149 -150 -151
0.05/0.07	v -152 -153 154 -155 -156 -157 -158 -159
0.05/0.07	v -160 -161 -162 -163 -164 -165 -166 -167
0.05/0.07	v -168 -169 -170 -171 -172 173 -174 -175
0.05/0.07	v -176 -177 -178 -179 -180 -181 -182 -183
0.05/0.07	v -184 -185 -186 -187 -188 -189 -190 -191
0.05/0.07	v 192 -193 -194 -195 -196 -197 -198 -199
0.05/0.07	v -200 -201 -202 -203 -204 -205 -206 -207
0.05/0.07	v -208 -209 -210 211 -212 -213 -214 -215
0.05/0.07	v -216 -217 -218 -219 -220 -221 -222 -223
0.05/0.07	v -224 -225 -226 -227 -228 -229 230 -231
0.05/0.07	v -232 -233 -234 -235 -236 -237 -238 -239
0.05/0.07	v -240 -241 -242 -243 -244 -245 -246 -247
0.05/0.07	v -248 249 -250 -251 -252 -253 -254 -255
0.05/0.07	v -256 -257 -258 -259 -260 -261 -262 -263
0.05/0.07	v -264 -265 -266 -267 268 -269 -270 -271
0.05/0.07	v -272 -273 -274 -275 -276 -277 -278 -279
0.05/0.07	v -280 -281 -282 -283 -284 -285 -286 287
0.05/0.07	v -288 -289 -290 -291 -292 -293 -294 -295
0.05/0.07	v -296 -297 -298 -299 -300 -301 -302 -303
0.05/0.07	v -304 -305 306 -307 -308 -309 -310 -311
0.05/0.07	v -312 -313 -314 -315 -316 -317 -318 -319
0.05/0.07	v -320 -321 -322 -323 -324 325 -326 -327
0.05/0.07	v -328 -329 -330 -331 -332 -333 -334 -335
0.05/0.07	v -336 -337 -338 -339 -340
0.05/0.07	v 0
0.05/0.07	c
0.05/0.07	c 0 conflicts, 187 decisions, 1 random
0.05/0.07	c 0 iterations, 0 restarts, 0 skipped
0.05/0.07	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.05/0.07	c 1 simplifications, 0 reductions
0.05/0.07	c
0.05/0.07	c vars: 0 fixed, 0 equiv, 17 elim, 0 merged
0.05/0.07	c elim: 41565 resolutions, 1 phases, 1 rounds
0.05/0.07	c sbst: 100% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
0.05/0.07	c arty: 19.00 and 0.00 xor average arity
0.05/0.07	c prbe: 680 probed, 1 phases, 1 rounds
0.05/0.07	c prbe: 0 failed, 0 lifted, 0 merged
0.05/0.07	c sccs: 0 non trivial, 0 fixed, 0 merged
0.05/0.07	c hash: 0 units, 0 merged
0.05/0.07	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.05/0.07	c subs: 0 forward, 0 backward, 0 doms
0.05/0.07	c strs: 0 forward, 0 backward
0.05/0.07	c doms: 0 dominators, 0 high, 0 low
0.05/0.07	c prps: 12903 propagations, 0.18 megaprops
0.05/0.07	c
0.05/0.07	c 0.1 seconds, 1 MB max, 0 MB recycled

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-1784318-1241934889/watcher-1784318-1241934889 -o /tmp/evaluation-result-1784318-1241934889/solver-1784318-1241934889 -C 5000 -W 6000 -M 1800 HOME/precosat HOME/instance-1784318-1241934889.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: 0.85 0.97 0.99 2/64 32102
/proc/meminfo: memFree=1726936/2055920 swapFree=4093368/4192956
[pid=32102] ppid=32100 vsize=788 CPUtime=0
/proc/32102/stat : 32102 (precosat) R 32100 32102 31957 0 -1 4194304 98 0 0 0 0 0 0 0 20 0 1 0 221522607 806912 83 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/32102/statm: 197 83 63 155 0 40 0

[startup+0.0591979 s]
/proc/loadavg: 0.85 0.97 0.99 2/64 32102
/proc/meminfo: memFree=1726936/2055920 swapFree=4093368/4192956
[pid=32102] ppid=32100 vsize=1432 CPUtime=0.05
/proc/32102/stat : 32102 (precosat) R 32100 32102 31957 0 -1 4194304 284 0 0 0 5 0 0 0 20 0 1 0 221522607 1466368 268 1992294400 134512640 135151029 4294956240 18446744073709551615 134573914 0 0 4096 17442 0 0 0 17 1 0 0
/proc/32102/statm: 358 268 79 155 0 201 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1432

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

[startup+0.0591979 s]
/proc/loadavg: 0.85 0.97 0.99 2/64 32102
/proc/meminfo: memFree=1726936/2055920 swapFree=4093368/4192956
[pid=32102] ppid=32100 vsize=1432 CPUtime=0.05
/proc/32102/stat : 32102 (precosat) R 32100 32102 31957 0 -1 4194304 284 0 0 0 5 0 0 0 20 0 1 0 221522607 1466368 268 1992294400 134512640 135151029 4294956240 18446744073709551615 134573914 0 0 4096 17442 0 0 0 17 1 0 0
/proc/32102/statm: 358 268 79 155 0 201 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1432

Child status: 10
Real time (s): 0.0779981
CPU time (s): 0.072988
CPU user time (s): 0.069989
CPU system time (s): 0.002999
CPU usage (%): 93.5767
Max. virtual memory (cumulated for all children) (KiB): 1432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.069989
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 285
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= 1
involuntary context switches= 15

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node10 at 2009-05-10 07:54:50
IDJOB=1784318
IDBENCH=71186
IDSOLVER=607
FILE ID=node10/1784318-1241934889
PBS_JOBID= 9264997
Free space on /tmp= 66408 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n17himBHm20-p0-q146.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784318-1241934889/watcher-1784318-1241934889 -o /tmp/evaluation-result-1784318-1241934889/solver-1784318-1241934889 -C 5000 -W 6000 -M 1800  HOME/precosat HOME/instance-1784318-1241934889.cnf

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

MD5SUM BENCH= a888f7c11818f92eb0f40bc8ce26728a
RANDOM SEED=107307622

node10.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		: 3000.263
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	: 5931.00
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		: 3000.263
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:       1727352 kB
Buffers:         51160 kB
Cached:         138600 kB
SwapCached:      94412 kB
Active:         114052 kB
Inactive:       171372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1727352 kB
SwapTotal:     4192956 kB
SwapFree:      4093368 kB
Dirty:            1064 kB
Writeback:           0 kB
Mapped:          14060 kB
Slab:            29108 kB
Committed_AS:   732540 kB
PageTables:       1372 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= 66404 MiB
End job on node10 at 2009-05-10 07:54:50