Trace number 2673945

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 NameAnswerobjective functionCPU timeWall clock time
PBPASSolver 2010-06-13? (MO) 13.26 13.3351

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/liu/
wnq/normalized-wnq_n100_mw99_0.opb.PB06.opb
MD5SUM325852af8542a0f454599a2893f1b120
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark1297
Best CPU time to get the best result obtained on this benchmark1800.67
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 434
Optimality of the best value was proved NO
Number of variables10000
Total number of constraints656900
Number of constraints which are clauses656900
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint100
Number of terms in the objective function 10000
Biggest coefficient in the objective function 99
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 495293
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 99
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 495293
Number of bits of the biggest sum of numbers19
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data


Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2673945-1276793685/watcher-2673945-1276793685 -o /tmp/evaluation-result-2673945-1276793685/solver-2673945-1276793685 -C 1800 -W 2000 -M 1800 run HOME/instance-2673945-1276793685.opb 

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): 2000 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 1.00 3/106 24499
/proc/meminfo: memFree=1846284/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0

[startup+0.0479659 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24499
/proc/meminfo: memFree=1846284/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100971 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24499
/proc/meminfo: memFree=1846284/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.30099 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24499
/proc/meminfo: memFree=1846284/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.70103 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24499
/proc/meminfo: memFree=1846284/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50111 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 24502
/proc/meminfo: memFree=1650844/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
[pid=24501] ppid=24499 vsize=293540 CPUtime=1.48
/proc/24501/stat : 24501 (PBPASSolver) R 24499 24499 23933 0 -1 4202496 73221 0 0 0 60 88 0 0 25 0 1 0 20661485 300584960 72776 1992294400 134512640 134902295 4290891696 18446744073709551615 134586919 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24501/statm: 73385 72780 256 96 0 72597 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 302240

[startup+3.10127 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 24502
/proc/meminfo: memFree=1445748/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
[pid=24501] ppid=24499 vsize=571268 CPUtime=3.08
/proc/24501/stat : 24501 (PBPASSolver) R 24499 24499 23933 0 -1 4202496 142685 0 0 0 142 166 0 0 25 0 1 0 20661485 584978432 142239 1992294400 134512640 134902295 4290891696 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24501/statm: 142817 142239 256 96 0 142029 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 579968

[startup+6.30058 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 24502
/proc/meminfo: memFree=928420/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
[pid=24501] ppid=24499 vsize=1042308 CPUtime=6.29
/proc/24501/stat : 24501 (PBPASSolver) R 24499 24499 23933 0 -1 4202496 260384 0 0 0 323 306 0 0 25 0 1 0 20661485 1067323392 259938 1992294400 134512640 134902295 4290891696 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24501/statm: 260577 259940 256 96 0 259789 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1051008

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 24502
/proc/meminfo: memFree=126760/2059040 swapFree=4164948/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
[pid=24501] ppid=24499 vsize=1791076 CPUtime=12.68
/proc/24501/stat : 24501 (PBPASSolver) R 24499 24499 23933 0 -1 4202496 447611 0 0 0 751 517 0 0 25 0 1 0 20661485 1834061824 447166 1992294400 134512640 134902295 4290891696 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24501/statm: 447769 447168 256 96 0 446981 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1799776



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+13.2114 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 24502
/proc/meminfo: memFree=8292/2059040 swapFree=4162584/4192956
[pid=24499] ppid=24497 vsize=8700 CPUtime=0
/proc/24499/stat : 24499 (run) S 24497 24499 23933 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 20661485 8908800 250 1992294400 4194304 4922060 140735668898832 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24499/statm: 2175 250 211 178 0 68 0
[pid=24501] ppid=24499 vsize=1843812 CPUtime=13.26
/proc/24501/stat : 24501 (PBPASSolver) D 24499 24499 23933 0 -1 4204544 460732 0 0 0 791 535 0 0 25 0 1 0 20661485 1888063488 460286 1992294400 134512640 134902295 4290891696 18446744073709551615 134520305 0 0 4096 17608 18446744071562310694 0 0 17 1 0 0 4
/proc/24501/statm: 460953 460286 256 96 0 460165 0
Current children cumulated CPU time (s) 13.26
Current children cumulated vsize (KiB) 1852512

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

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

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 24499 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=999
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=1999
# CPU time returned by wait4() is 0.002998
# while last known CPU time is 13.26
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 13.3351
CPU time (s): 13.26
CPU user time (s): 7.91
CPU system time (s): 5.35
CPU usage (%): 99.4365
Max. virtual memory (cumulated for all children) (KiB): 1852512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.000999
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 522
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= 4
involuntary context switches= 4

runsolver used 0.023996 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node036 at 2010-06-17 18:54:46
IDJOB=2673945
IDBENCH=1969
IDSOLVER=1174
FILE ID=node036/2673945-1276793685
PBS_JOBID= 11176613
Free space on /tmp= 62508 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB06/liu/wnq/normalized-wnq_n100_mw99_0.opb.PB06.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2673945-1276793685/watcher-2673945-1276793685 -o /tmp/evaluation-result-2673945-1276793685/solver-2673945-1276793685 -C 1800 -W 2000 -M 1800  run HOME/instance-2673945-1276793685.opb

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

MD5SUM BENCH= 325852af8542a0f454599a2893f1b120
RANDOM SEED=1530906487

node036.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.251
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.50
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		: 3000.251
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1846680 kB
Buffers:          6068 kB
Cached:          94920 kB
SwapCached:       1312 kB
Active:          25952 kB
Inactive:       107820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1846680 kB
SwapTotal:     4192956 kB
SwapFree:      4164948 kB
Dirty:           17740 kB
Writeback:           0 kB
AnonPages:       31512 kB
Mapped:          14260 kB
Slab:            56728 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180548 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62508 MiB
End job on node036 at 2010-06-17 18:55:01