Trace number 2682158

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
PB/CT 0.1 fixed? (MO) 29.8905 31.8995

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-cycle.opb
MD5SUMa4f456875ede4549ae03268180cd603c
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of variables84737
Total number of constraints1802
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1802
Minimum length of a constraint11
Maximum length of a constraint1470
Number of terms in the objective function 9240
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1737924154969464
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 48888431614361600
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 779202693141814557
Number of bits of the biggest sum of numbers60
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
4.69/4.73	c constraints 1802/0 clauses 0/0 units 622
4.69/4.73	c vars 84737
4.69/4.73	c objective 9206 + -704152371316772

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-2682158-1277487185/watcher-2682158-1277487185 -o /tmp/evaluation-result-2682158-1277487185/solver-2682158-1277487185 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682158-1277487185.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 0.99 0.98 3/106 22960
/proc/meminfo: memFree=1915336/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=2416 CPUtime=0
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 293 0 0 0 0 0 0 0 20 0 1 0 122374931 2473984 212 1992294400 134512640 136421960 4288380096 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 604 212 138 467 0 135 0

[startup+0.060919 s]
/proc/loadavg: 1.00 0.99 0.98 3/106 22960
/proc/meminfo: memFree=1915336/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=3400 CPUtime=0.05
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 547 0 0 0 5 0 0 0 20 0 1 0 122374931 3481600 433 1992294400 134512640 136421960 4288380096 18446744073709551615 135820588 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 850 433 146 467 0 381 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3400

[startup+0.100922 s]
/proc/loadavg: 1.00 0.99 0.98 3/106 22960
/proc/meminfo: memFree=1915336/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=4196 CPUtime=0.09
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 753 0 0 0 9 0 0 0 20 0 1 0 122374931 4296704 639 1992294400 134512640 136421960 4288380096 18446744073709551615 135801081 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 1049 639 146 467 0 580 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4196

[startup+0.300942 s]
/proc/loadavg: 1.00 0.99 0.98 3/106 22960
/proc/meminfo: memFree=1915336/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=8344 CPUtime=0.29
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 1769 0 0 0 29 0 0 0 20 0 1 0 122374931 8544256 1655 1992294400 134512640 136421960 4288380096 18446744073709551615 135378072 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 2086 1655 146 467 0 1617 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8344

[startup+0.70098 s]
/proc/loadavg: 1.00 0.99 0.98 3/106 22960
/proc/meminfo: memFree=1915336/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=16568 CPUtime=0.69
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 3776 0 0 0 67 2 0 0 20 0 1 0 122374931 16965632 3662 1992294400 134512640 136421960 4288380096 18446744073709551615 135527050 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 4142 3662 146 467 0 3673 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16568

[startup+1.50106 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22961
/proc/meminfo: memFree=1894992/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=25052 CPUtime=1.49
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 5861 0 0 0 146 3 0 0 22 0 1 0 122374931 25653248 5747 1992294400 134512640 136421960 4288380096 18446744073709551615 135159045 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 6263 5747 146 467 0 5794 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25052

[startup+3.10021 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22961
/proc/meminfo: memFree=1890776/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=27752 CPUtime=3.09
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 6544 0 0 0 306 3 0 0 25 0 1 0 122374931 28418048 6430 1992294400 134512640 136421960 4288380096 18446744073709551615 135158978 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22960/statm: 6938 6430 146 467 0 6469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27752

[startup+6.30152 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22961
/proc/meminfo: memFree=1823816/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=167364 CPUtime=6.29
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 42423 0 0 0 612 17 0 0 25 0 1 0 122374931 171380736 40489 1992294400 134512640 136421960 4288380096 18446744073709551615 135829965 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22960/statm: 41841 40497 195 467 0 41372 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 167364

[startup+12.7011 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22961
/proc/meminfo: memFree=1400108/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=572804 CPUtime=12.69
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 150137 0 0 0 1208 61 0 0 25 0 1 0 122374931 586551296 138591 1992294400 134512640 136421960 4288380096 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22960/statm: 143201 138591 195 467 0 142732 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 572804

[startup+25.5014 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22963
/proc/meminfo: memFree=666648/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=1281128 CPUtime=25.49
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 340188 0 0 0 2404 145 0 0 25 0 1 0 122374931 1311875072 315130 1992294400 134512640 136421960 4288380096 18446744073709551615 135809629 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22960/statm: 320282 315131 195 467 0 319813 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1281128



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+29.7088 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22963
/proc/meminfo: memFree=70456/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=1849400 CPUtime=29.7
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4202496 489274 0 0 0 2773 197 0 0 25 0 1 0 122374931 1893785600 461143 1992294400 134512640 136421960 4288380096 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22960/statm: 462350 461148 196 467 0 461881 0
Current children cumulated CPU time (s) 29.7
Current children cumulated vsize (KiB) 1849400

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -22960

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

[startup+30.2008 s]
/proc/loadavg: 1.00 0.99 0.98 2/107 22963
/proc/meminfo: memFree=70456/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=1849400 CPUtime=29.7
/proc/22960/stat : 22960 (pbct) S 22958 22960 22152 0 -1 4194304 489303 0 0 0 2773 197 0 0 25 0 1 0 122374931 1893785600 461172 1992294400 134512640 136421960 4288380096 18446744073709551615 135884462 0 16384 4096 16387 18446604437861106688 0 0 17 1 0 0 0
/proc/22960/statm: 462350 461172 197 467 0 461881 0
Current children cumulated CPU time (s) 29.7
Current children cumulated vsize (KiB) 1849400

[startup+31.0009 s]
/proc/loadavg: 0.92 0.97 0.98 1/108 22964
/proc/meminfo: memFree=67348/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=1849400 CPUtime=29.7
/proc/22960/stat : 22960 (pbct) S 22958 22960 22152 0 -1 4194304 489303 0 0 0 2773 197 0 0 25 0 1 0 122374931 1893785600 461172 1992294400 134512640 136421960 4288380096 18446744073709551615 135884462 0 16384 4096 16387 18446604437861106688 0 0 17 1 0 0 0
/proc/22960/statm: 462350 461172 197 467 0 461881 0
Current children cumulated CPU time (s) 29.7
Current children cumulated vsize (KiB) 1849400

[startup+31.4009 s]
/proc/loadavg: 0.92 0.97 0.98 1/108 22964
/proc/meminfo: memFree=67348/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=1849400 CPUtime=29.7
/proc/22960/stat : 22960 (pbct) S 22958 22960 22152 0 -1 4194304 489303 0 0 0 2773 197 0 0 25 0 1 0 122374931 1893785600 461172 1992294400 134512640 136421960 4288380096 18446744073709551615 135884462 0 16384 4096 16387 18446604437861106688 0 0 17 1 0 0 0
/proc/22960/statm: 462350 461172 197 467 0 461881 0
Current children cumulated CPU time (s) 29.7
Current children cumulated vsize (KiB) 1849400

[startup+31.801 s]
/proc/loadavg: 0.92 0.97 0.98 2/107 22964
/proc/meminfo: memFree=912440/2059040 swapFree=4139084/4192956
[pid=22960] ppid=22958 vsize=0 CPUtime=29.79
/proc/22960/stat : 22960 (pbct) R 22958 22960 22152 0 -1 4195332 489303 0 0 0 2773 206 0 0 18 0 1 0 122374931 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/22960/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 29.79
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 31.8995
CPU time (s): 29.8905
CPU user time (s): 27.7368
CPU system time (s): 2.15367
CPU usage (%): 93.7019
Max. virtual memory (cumulated for all children) (KiB): 1849400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.7368
system time used= 2.15367
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 489303
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= 93

runsolver used 0.056991 second user time and 0.166974 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-25 19:33:06
IDJOB=2682158
IDBENCH=2433
IDSOLVER=1192
FILE ID=node018/2682158-1277487185
PBS_JOBID= 11190519
Free space on /tmp= 62480 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-cycle.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682158-1277487185/watcher-2682158-1277487185 -o /tmp/evaluation-result-2682158-1277487185/solver-2682158-1277487185 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682158-1277487185.opb

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

MD5SUM BENCH= a4f456875ede4549ae03268180cd603c
RANDOM SEED=1759200007

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1915740 kB
Buffers:          3652 kB
Cached:          40288 kB
SwapCached:       5852 kB
Active:          37624 kB
Inactive:        18812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1915740 kB
SwapTotal:     4192956 kB
SwapFree:      4139084 kB
Dirty:           10336 kB
Writeback:           4 kB
AnonPages:       11380 kB
Mapped:          11868 kB
Slab:            64792 kB
PageTables:       4120 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181848 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= 62480 MiB
End job on node018 at 2010-06-25 19:33:38