Trace number 351910

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, and are wall clock time (not CPU 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 NameAnswerObjective functionCPU timeWall clock time
PB-clasp 2007-03-23? (MO) 31.74 31.9538

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos5.opb
MD5SUM687e90f40c46b53feec9c54ee9b43fa6
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark15363
Best CPU time to get the best result obtained on this benchmark1800.08
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 15360
Optimality of the best value was proved NO
Number of variables163
Total number of constraints73
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3
Number of constraints which are nor clauses,nor cardinality constraints70
Minimum length of a constraint11
Maximum length of a constraint102
Number of terms in the objective function 163
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 74742
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 74742
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

31.74/31.86	c Somebody sent me a SIGTERM
31.74/31.86	s UNKNOWN
31.74/31.94	pb2clasp1: no process killed

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/351910-1176617195/instance-351910-1176617195.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node46/watcher-351910-1176617195 -o ROOT/results/node46/solver-351910-1176617195 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-351910-1176617195.opb /tmp/evaluation/351910-1176617195/temp 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.91 0.97 0.98 3/65 8358
/proc/meminfo: memFree=1493888/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12268 CPUtime=0
/proc/8358/stat : 8358 (pbclasp) D 8356 8358 7398 0 -1 4194304 351 0 0 0 0 0 0 0 18 0 1 0 16402607 12562432 317 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255826033253 0 2147483391 4224 0 18446744072099781622 0 0 17 1 0 0
/proc/8358/statm: 3067 317 242 3 0 167 0

[startup+0.0831651 s]
/proc/loadavg: 0.91 0.97 0.98 3/65 8358
/proc/meminfo: memFree=1493888/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 498 0 0 0 0 0 0 0 16 0 1 0 16402607 12697600 449 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834763362 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/8358/statm: 3100 449 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.101272 s]
/proc/loadavg: 0.91 0.97 0.98 3/65 8358
/proc/meminfo: memFree=1493888/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.06
/proc/8358/stat : 8358 (pbclasp) R 8356 8358 7398 0 -1 4194304 575 1193 0 0 0 0 6 0 16 0 1 0 16402607 12697600 472 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834763362 0 0 4224 16384 0 0 0 17 0 0 0
/proc/8358/statm: 3100 472 342 3 0 200 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12400

[startup+0.301204 s]
/proc/loadavg: 0.91 0.97 0.98 3/65 8358
/proc/meminfo: memFree=1493888/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12400

[startup+0.701277 s]
/proc/loadavg: 0.91 0.97 0.98 3/65 8358
/proc/meminfo: memFree=1493888/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12400

[startup+1.50142 s]
/proc/loadavg: 0.91 0.97 0.98 2/68 8368
/proc/meminfo: memFree=1431512/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=98288 CPUtime=1.37
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 24577 0 1 0 126 11 0 0 25 0 1 0 16402618 100646912 24009 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 8230523 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 24572 24009 184 154 0 24042 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 116040

[startup+3.10172 s]
/proc/loadavg: 0.92 0.97 0.98 2/68 8368
/proc/meminfo: memFree=1356056/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=202868 CPUtime=2.96
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 51155 0 1 0 276 20 0 0 25 0 1 0 16402618 207736832 49827 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 8230523 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 50717 49828 184 154 0 50187 0
Current children cumulated CPU time (s) 3.03
Current children cumulated vsize (KiB) 220620

[startup+6.30131 s]
/proc/loadavg: 0.92 0.97 0.98 2/68 8368
/proc/meminfo: memFree=1152216/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=401560 CPUtime=6.16
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 101899 0 1 0 575 41 0 0 25 0 1 0 16402618 411197440 98861 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 8230523 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 100390 98863 184 154 0 99860 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 419312

[startup+12.7015 s]
/proc/loadavg: 0.93 0.97 0.98 2/68 8368
/proc/meminfo: memFree=756248/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=788580 CPUtime=12.57
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 199061 0 1 0 1177 80 0 0 25 0 1 0 16402618 807505920 194485 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 8230523 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 197145 194485 184 154 0 196615 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 806332

[startup+25.5019 s]
/proc/loadavg: 0.94 0.97 0.98 2/68 8368
/proc/meminfo: memFree=14872/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=1516744 CPUtime=25.35
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 387054 0 1 0 2382 153 0 0 25 0 1 0 16402618 1553145856 376710 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 134665821 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 379186 376711 184 154 0 378656 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 1534496



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.801 s]
/proc/loadavg: 0.95 0.97 0.98 2/68 8368
/proc/meminfo: memFree=14872/2055920 swapFree=4192956/4192956
[pid=8358] ppid=8356 vsize=12400 CPUtime=0.07
/proc/8358/stat : 8358 (pbclasp) S 8356 8358 7398 0 -1 4194304 589 1595 0 0 0 0 6 1 16 0 1 0 16402607 12697600 473 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 255834767252 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/8358/statm: 3100 473 343 3 0 200 0
[pid=8366] ppid=8358 vsize=5352 CPUtime=0
/proc/8366/stat : 8366 (sh) S 8358 8358 7398 0 -1 4194304 287 121 0 0 0 0 0 0 16 0 1 0 16402617 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 255825863492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8366/statm: 1338 224 188 169 0 49 0
[pid=8368] ppid=8366 vsize=1828500 CPUtime=31.67
/proc/8368/stat : 8368 (clasp) R 8366 8358 7398 0 -1 4194304 466604 0 1 0 2979 188 0 0 25 0 1 0 16402618 1872384000 456260 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 8230523 0 0 4096 0 0 0 0 17 1 0 0
/proc/8368/statm: 457125 456261 184 154 0 456595 0
Current children cumulated CPU time (s) 31.74
Current children cumulated vsize (KiB) 1846252

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child status: 0

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 8358 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=71989
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=26995
# CPU time returned by wait4() is 0.098984
# while last known CPU time is 31.74
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 31.9538
CPU time (s): 31.74
CPU user time (s): 29.85
CPU system time (s): 1.89
CPU usage (%): 99.331
Max. virtual memory (cumulated for all children) (KiB): 1846252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.071989
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2771
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= 78
involuntary context switches= 14

runsolver used 0.036994 second user time and 0.093985 second system time

The end

Launcher Data (download as text)

Begin job on node46 on Sun Apr 15 06:06:36 UTC 2007

IDJOB= 351910
IDBENCH= 1848
IDSOLVER= 158
FILE ID= node46/351910-1176617195

PBS_JOBID= 4557034

Free space on /tmp= 66219 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos5.opb
COMMAND LINE= pbclasp instance-351910-1176617195.opb /tmp/evaluation/351910-1176617195/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node46/convwatcher-351910-1176617195 -o ROOT/results/node46/conversion-351910-1176617195 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/351910-1176617195/instance-351910-1176617195.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node46/watcher-351910-1176617195 -o ROOT/results/node46/solver-351910-1176617195 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-351910-1176617195.opb /tmp/evaluation/351910-1176617195/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  687e90f40c46b53feec9c54ee9b43fa6

RANDOM SEED= 435642842

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node46.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.268
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		: 3000.268
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:       1494296 kB
Buffers:         71460 kB
Cached:         376116 kB
SwapCached:          0 kB
Active:         150512 kB
Inactive:       327252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1494296 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1104 kB
Writeback:           0 kB
Mapped:          27168 kB
Slab:            69868 kB
Committed_AS:   192060 kB
PageTables:       1476 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= 66219 MiB

End job on node46 on Sun Apr 15 06:07:10 UTC 2007