Trace number 1738122

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
gnovelty+ 2009-03-22SAT 0.204968 0.205484

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 benchmark0.038993
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 

0.09/0.16	c +------------------------------+
0.09/0.16	c | gNovelty+, version 1.2       |
0.09/0.16	c +------------------------------+
0.09/0.16	c gnovelty+ -h for help
0.09/0.16	c 
0.09/0.16	finish initINstance()
0.09/0.16	c Problem instance: numAtoms = 360, numClauses = 15466, numLiterals = 31256
0.09/0.16	c General parameters: seed = 1137051265, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.16	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 1.00, noise = adaptive
0.09/0.16	c tries = 1
0.09/0.16	c 
0.09/0.19	     0     7178         0      7178      6860      0.03
0.09/0.19	s SATISFIABLE
0.09/0.19	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
0.09/0.19	c Done in 0.030000 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-1738122-1240835763/watcher-1738122-1240835763 -o /tmp/evaluation-result-1738122-1240835763/solver-1738122-1240835763 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1738122-1240835763.cnf 1137051265 

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: 1.00 1.00 1.08 2/65 20467
/proc/meminfo: memFree=1776800/2055920 swapFree=4181360/4192956
[pid=20467] ppid=20465 vsize=957956 CPUtime=0
/proc/20467/stat : 20467 (gnovelty+) R 20465 20467 20253 0 -1 4194304 776 0 0 0 0 0 0 0 18 0 1 0 111605667 980946944 760 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/20467/statm: 239489 766 46 143 0 239344 0

[startup+0.038754 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 20467
/proc/meminfo: memFree=1776800/2055920 swapFree=4181360/4192956
[pid=20467] ppid=20465 vsize=957956 CPUtime=0.03
/proc/20467/stat : 20467 (gnovelty+) R 20465 20467 20253 0 -1 4194304 6197 0 0 0 1 2 0 0 18 0 1 0 111605667 980946944 6181 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/20467/statm: 239489 6188 46 143 0 239344 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 957956

[startup+0.101763 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 20467
/proc/meminfo: memFree=1776800/2055920 swapFree=4181360/4192956
[pid=20467] ppid=20465 vsize=958736 CPUtime=0.09
/proc/20467/stat : 20467 (gnovelty+) R 20465 20467 20253 0 -1 4194304 12688 0 0 0 5 4 0 0 18 0 1 0 111605667 981745664 12672 1992294400 134512640 135098890 4294956208 18446744073709551615 134518580 0 0 4096 0 0 0 0 17 1 0 0
/proc/20467/statm: 239684 12676 48 143 0 239539 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958736

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

[startup+0.201781 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 20467
/proc/meminfo: memFree=1776800/2055920 swapFree=4181360/4192956
[pid=20467] ppid=20465 vsize=0 CPUtime=0.19
/proc/20467/stat : 20467 (gnovelty+) R 20465 20467 20253 0 -1 4194308 19822 0 0 0 11 8 0 0 18 0 1 0 111605667 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/20467/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.205484
CPU time (s): 0.204968
CPU user time (s): 0.119981
CPU system time (s): 0.084987
CPU usage (%): 99.7489
Max. virtual memory (cumulated for all children) (KiB): 958736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.119981
system time used= 0.084987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19822
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= 1

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node82 at 2009-04-27 14:36:03
IDJOB=1738122
IDBENCH=71801
IDSOLVER=536
FILE ID=node82/1738122-1240835763
PBS_JOBID= 9187544
Free space on /tmp= 66384 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738122-1240835763/watcher-1738122-1240835763 -o /tmp/evaluation-result-1738122-1240835763/solver-1738122-1240835763 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1738122-1240835763.cnf 1137051265

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

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=1137051265

node82.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		: 3000.259
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		: 3000.259
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:       1777216 kB
Buffers:         35488 kB
Cached:         178484 kB
SwapCached:       4920 kB
Active:          44044 kB
Inactive:       177988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1777216 kB
SwapTotal:     4192956 kB
SwapFree:      4181360 kB
Dirty:             836 kB
Writeback:           0 kB
Mapped:          14380 kB
Slab:            42612 kB
Committed_AS:   338612 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66384 MiB
End job on node82 at 2009-04-27 14:36:04