Trace number 350961

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) 36.72 36.9064

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/unibo/normalized-reduced-mps-v2-20-10-core2536-691.opb
MD5SUM06a8ed91d04dd9c37cb8c92ab4f7d82f
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark388
Best CPU time to get the best result obtained on this benchmark1800.03
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 386
Optimality of the best value was proved NO
Number of variables15284
Total number of constraints2537
Number of constraints which are clauses2536
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint13789
Number of terms in the objective function 15284
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 15284
Number of bits of the sum of numbers in the objective function 14
Biggest number in a constraint 9256
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 23045
Number of bits of the biggest sum of numbers15
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)

36.72/36.81	c Somebody sent me a SIGTERM
36.72/36.81	s UNKNOWN
36.72/36.87	pb2clasp1: no process killed

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/350961-1176571252/instance-350961-1176571252.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/node25/watcher-350961-1176571252 -o ROOT/results/node25/solver-350961-1176571252 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-350961-1176571252.opb /tmp/evaluation/350961-1176571252/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: 0.92 0.98 0.99 3/64 27359
/proc/meminfo: memFree=1511712/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=12268 CPUtime=0
/proc/27359/stat : 27359 (pbclasp) D 27357 27359 26724 0 -1 4194304 351 0 0 0 0 0 0 0 18 0 1 0 105042318 12562432 317 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253307353701 0 2147483391 4224 0 18446744072099781622 0 0 17 1 0 0
/proc/27359/statm: 3067 317 242 3 0 167 0

[startup+0.0650219 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27359
/proc/meminfo: memFree=1511712/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=13760 CPUtime=0.05
/proc/27359/stat : 27359 (pbclasp) R 27357 27359 26724 0 -1 4194304 4480 0 0 0 4 1 0 0 18 0 1 0 105042318 14090240 771 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253307396313 0 0 4224 16384 0 0 0 17 1 0 0
/proc/27359/statm: 3440 742 320 3 0 540 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 13760

[startup+0.101027 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27359
/proc/meminfo: memFree=1511712/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=13760 CPUtime=0.09
/proc/27359/stat : 27359 (pbclasp) R 27357 27359 26724 0 -1 4194304 7568 0 0 0 7 2 0 0 18 0 1 0 105042318 14090240 744 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253307065770 0 0 4224 16384 0 0 0 17 1 0 0
/proc/27359/statm: 3440 756 320 3 0 540 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13760

[startup+0.301061 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27359
/proc/meminfo: memFree=1511712/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=13888 CPUtime=0.29
/proc/27359/stat : 27359 (pbclasp) R 27357 27359 26724 0 -1 4194304 24669 0 0 0 21 8 0 0 19 0 1 0 105042318 14221312 798 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253307065770 0 0 4224 16384 0 0 0 17 1 0 0
/proc/27359/statm: 3472 798 320 3 0 572 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13888

[startup+0.701129 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27359
/proc/meminfo: memFree=1511712/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=13992 CPUtime=0.69
/proc/27359/stat : 27359 (pbclasp) R 27357 27359 26724 0 -1 4194304 39974 0 0 0 56 13 0 0 22 0 1 0 105042318 14327808 853 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253321219848 0 0 4224 16384 0 0 0 17 1 0 0
/proc/27359/statm: 3498 853 320 3 0 598 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13992

[startup+1.50127 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 27360
/proc/meminfo: memFree=1509208/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=14692 CPUtime=1.49
/proc/27359/stat : 27359 (pbclasp) R 27357 27359 26724 0 -1 4194304 40140 0 0 0 136 13 0 0 25 0 1 0 105042318 15044608 1019 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253307032289 0 0 4224 16384 0 0 0 17 1 0 0
/proc/27359/statm: 3673 1019 320 3 0 773 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14692

[startup+3.10254 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 27360
/proc/meminfo: memFree=1507864/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=16408 CPUtime=2.49
/proc/27359/stat : 27359 (pbclasp) S 27357 27359 26724 0 -1 4194304 40588 0 0 0 236 13 0 0 16 0 1 0 105042318 16801792 1454 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253316083810 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/27359/statm: 4102 1454 324 3 0 1202 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 16408

[startup+6.30109 s]
/proc/loadavg: 0.93 0.98 0.99 2/67 27362
/proc/meminfo: memFree=1503432/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=16408 CPUtime=2.49
/proc/27359/stat : 27359 (pbclasp) S 27357 27359 26724 0 -1 4194304 40588 0 0 0 236 13 0 0 16 0 1 0 105042318 16801792 1454 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253316083810 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/27359/statm: 4102 1454 324 3 0 1202 0
[pid=27361] ppid=27359 vsize=5352 CPUtime=0
/proc/27361/stat : 27361 (sh) S 27359 27359 26724 0 -1 4194304 276 0 0 0 0 0 0 0 18 0 1 0 105042569 5480448 229 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 253307183940 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/27361/statm: 1338 229 193 169 0 49 0
[pid=27362] ppid=27361 vsize=16140 CPUtime=3.78
/proc/27362/stat : 27362 (pb2clasp1) R 27361 27359 26724 0 -1 4194304 1444 0 0 0 377 1 0 0 25 0 1 0 105042569 16527360 1406 18446744073709551615 4194304 4206940 548682069360 18446744073709551615 253316083666 0 0 4224 0 0 0 0 17 1 0 0
/proc/27362/statm: 4035 1406 340 3 0 1135 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 37900

[startup+12.7022 s]
/proc/loadavg: 0.93 0.98 0.99 2/68 27369
/proc/meminfo: memFree=787328/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=17860 CPUtime=6.34
/proc/27359/stat : 27359 (pbclasp) S 27357 27359 26724 0 -1 4194304 41528 2534 0 0 240 13 378 3 16 0 1 0 105042318 18288640 1810 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253316087700 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/27359/statm: 4465 1810 343 3 0 1565 0
[pid=27367] ppid=27359 vsize=5352 CPUtime=0
/proc/27367/stat : 27367 (sh) S 27359 27359 26724 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 105042956 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 253307183940 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/27367/statm: 1338 224 188 169 0 49 0
[pid=27368] ppid=27367 vsize=2520 CPUtime=0
/proc/27368/stat : 27368 (cat) S 27367 27359 26724 0 -1 4194304 119 0 0 0 0 0 0 0 15 0 1 0 105042957 2580480 87 18446744073709551615 4194304 4211220 548682069456 18446744073709551615 253307355362 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/27368/statm: 630 87 71 4 0 42 0
[pid=27369] ppid=27367 vsize=759692 CPUtime=6.3
/proc/27369/stat : 27369 (clasp) R 27367 27359 26724 0 -1 4194304 190534 0 1 0 553 77 0 0 25 0 1 0 105042957 777924608 187700 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/27369/statm: 189923 187701 184 154 0 189393 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 785424

[startup+25.5014 s]
/proc/loadavg: 0.95 0.98 0.99 2/68 27369
/proc/meminfo: memFree=181120/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=17860 CPUtime=6.34
/proc/27359/stat : 27359 (pbclasp) S 27357 27359 26724 0 -1 4194304 41528 2534 0 0 240 13 378 3 16 0 1 0 105042318 18288640 1810 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253316087700 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/27359/statm: 4465 1810 343 3 0 1565 0
[pid=27367] ppid=27359 vsize=5352 CPUtime=0
/proc/27367/stat : 27367 (sh) S 27359 27359 26724 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 105042956 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 253307183940 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/27367/statm: 1338 224 188 169 0 49 0
[pid=27368] ppid=27367 vsize=2520 CPUtime=0
/proc/27368/stat : 27368 (cat) S 27367 27359 26724 0 -1 4194304 119 0 0 0 0 0 0 0 15 0 1 0 105042957 2580480 87 18446744073709551615 4194304 4211220 548682069456 18446744073709551615 253307355362 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/27368/statm: 630 87 71 4 0 42 0
[pid=27369] ppid=27367 vsize=1340780 CPUtime=19.09
/proc/27369/stat : 27369 (clasp) R 27367 27359 26724 0 -1 4194304 343475 0 1 0 1767 142 0 0 25 0 1 0 105042957 1372958720 332855 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/27369/statm: 335195 332856 184 154 0 334665 0
Current children cumulated CPU time (s) 25.43
Current children cumulated vsize (KiB) 1366512



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+36.8013 s]
/proc/loadavg: 0.95 0.98 0.99 2/68 27369
/proc/meminfo: memFree=15232/2055920 swapFree=4192812/4192956
[pid=27359] ppid=27357 vsize=17860 CPUtime=6.34
/proc/27359/stat : 27359 (pbclasp) S 27357 27359 26724 0 -1 4194304 41528 2534 0 0 240 13 378 3 16 0 1 0 105042318 18288640 1810 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 253316087700 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/27359/statm: 4465 1810 343 3 0 1565 0
[pid=27367] ppid=27359 vsize=5352 CPUtime=0
/proc/27367/stat : 27367 (sh) S 27359 27359 26724 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 105042956 5480448 224 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 253307183940 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/27367/statm: 1338 224 188 169 0 49 0
[pid=27368] ppid=27367 vsize=2520 CPUtime=0
/proc/27368/stat : 27368 (cat) S 27367 27359 26724 0 -1 4194304 119 0 0 0 0 0 0 0 15 0 1 0 105042957 2580480 87 18446744073709551615 4194304 4211220 548682069456 18446744073709551615 253307355362 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/27368/statm: 630 87 71 4 0 42 0
[pid=27369] ppid=27367 vsize=1835044 CPUtime=30.38
/proc/27369/stat : 27369 (clasp) R 27367 27359 26724 0 -1 4194304 461891 0 1 0 2849 189 0 0 25 0 1 0 105042957 1879085056 442914 18446744073709551615 134512640 135144128 4294956832 18446744073709551615 135019764 0 0 4096 0 0 0 0 17 1 0 0
/proc/27369/statm: 458761 442915 184 154 0 458231 0
Current children cumulated CPU time (s) 36.72
Current children cumulated vsize (KiB) 1860776

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 27359 and gives
#  childrusage.ru_utime.tv_sec=6
#  childrusage.ru_utime.tv_usec=206056
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=189971
# CPU time returned by wait4() is 6.39603
# while last known CPU time is 36.72
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 36.9064
CPU time (s): 36.72
CPU user time (s): 34.67
CPU system time (s): 2.05
CPU usage (%): 99.4949
Max. virtual memory (cumulated for all children) (KiB): 1860776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.20606
system time used= 0.189971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 45787
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 91
involuntary context switches= 28

runsolver used 0.041993 second user time and 0.103984 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Sat Apr 14 17:20:52 UTC 2007

IDJOB= 350961
IDBENCH= 1626
IDSOLVER= 158
FILE ID= node25/350961-1176571252

PBS_JOBID= 4556879

Free space on /tmp= 66562 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/unibo/normalized-reduced-mps-v2-20-10-core2536-691.opb
COMMAND LINE= pbclasp instance-350961-1176571252.opb /tmp/evaluation/350961-1176571252/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-350961-1176571252 -o ROOT/results/node25/conversion-350961-1176571252 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/350961-1176571252/instance-350961-1176571252.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-350961-1176571252 -o ROOT/results/node25/solver-350961-1176571252 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-350961-1176571252.opb /tmp/evaluation/350961-1176571252/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  06a8ed91d04dd9c37cb8c92ab4f7d82f

RANDOM SEED= 420955854

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.261
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		: 3000.261
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:       1512120 kB
Buffers:         49212 kB
Cached:         371708 kB
SwapCached:          0 kB
Active:          85084 kB
Inactive:       352608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512120 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2684 kB
Writeback:           0 kB
Mapped:          26920 kB
Slab:            92100 kB
Committed_AS:   150504 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= 66559 MiB

End job on node25 on Sat Apr 14 17:21:32 UTC 2007