Trace number 2682917

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) 39.37 41.3854

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-d2q06c.opb
MD5SUM7b03b498d913dd1b306399e53ada7e6f
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark11.6222
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables155010
Total number of constraints2171
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 constraints2171
Minimum length of a constraint30
Maximum length of a constraint3270
Number of terms in the objective function 89670
Biggest coefficient in the objective function 36281708852543488
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 17434532498669331507
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 1246989811751845888
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 17434532498669331507
Number of bits of the biggest sum of numbers64
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
4.89/4.95	c constraints 2171/0 clauses 0/0 units 16338
4.89/4.95	c vars 155010
10.58/10.61	c objective 82654 + -396159270940753028

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-2682917-1277487149/watcher-2682917-1277487149 -o /tmp/evaluation-result-2682917-1277487149/solver-2682917-1277487149 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682917-1277487149.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: 0.92 0.98 0.94 3/106 24513
/proc/meminfo: memFree=1789868/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=2416 CPUtime=0
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 293 0 0 0 0 0 0 0 20 0 1 0 124316675 2473984 212 1992294400 134512640 136421960 4290004576 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 604 212 138 467 0 135 0

[startup+0.108692 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 24513
/proc/meminfo: memFree=1789868/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=5864 CPUtime=0.1
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 1294 0 0 0 10 0 0 0 20 0 1 0 124316675 6004736 840 1992294400 134512640 136421960 4290004576 18446744073709551615 135203278 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 1466 841 138 467 0 997 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5864

[startup+0.200711 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 24513
/proc/meminfo: memFree=1789868/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=7952 CPUtime=0.19
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 2082 0 0 0 19 0 0 0 20 0 1 0 124316675 8142848 1435 1992294400 134512640 136421960 4290004576 18446744073709551615 135801367 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 1988 1435 138 467 0 1519 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7952

[startup+0.300732 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 24513
/proc/meminfo: memFree=1789868/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=9492 CPUtime=0.29
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 2593 0 0 0 28 1 0 0 20 0 1 0 124316675 9719808 1689 1992294400 134512640 136421960 4290004576 18446744073709551615 135161837 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 2373 1689 139 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700817 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 24513
/proc/meminfo: memFree=1789868/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=13840 CPUtime=0.69
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 3637 0 0 0 68 1 0 0 21 0 1 0 124316675 14172160 2733 1992294400 134512640 136421960 4290004576 18446744073709551615 135158981 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 3460 2733 146 467 0 2991 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13840

[startup+1.50099 s]
/proc/loadavg: 0.92 0.98 0.94 2/107 24514
/proc/meminfo: memFree=1773616/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=25120 CPUtime=1.49
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 6319 0 0 0 146 3 0 0 23 0 1 0 124316675 25722880 5415 1992294400 134512640 136421960 4290004576 18446744073709551615 135809510 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 6280 5415 146 467 0 5811 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25120

[startup+3.10133 s]
/proc/loadavg: 0.92 0.98 0.94 2/107 24514
/proc/meminfo: memFree=1757496/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=52364 CPUtime=3.09
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 12832 0 0 0 304 5 0 0 25 0 1 0 124316675 53620736 11928 1992294400 134512640 136421960 4290004576 18446744073709551615 134537311 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 13091 11928 146 467 0 12622 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 52364

[startup+6.30101 s]
/proc/loadavg: 0.93 0.98 0.94 2/107 24514
/proc/meminfo: memFree=1719180/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=77012 CPUtime=6.29
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 18755 0 0 0 621 8 0 0 25 0 1 0 124316675 78860288 17851 1992294400 134512640 136421960 4290004576 18446744073709551615 135161820 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24513/statm: 19253 17851 150 467 0 18784 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 77012

[startup+12.7014 s]
/proc/loadavg: 0.93 0.98 0.94 2/107 24514
/proc/meminfo: memFree=1592824/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=248748 CPUtime=12.68
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 62996 0 0 0 1238 30 0 0 25 0 1 0 124316675 254717952 59971 1992294400 134512640 136421960 4290004576 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24513/statm: 62187 59972 195 467 0 61718 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 248748

[startup+25.5011 s]
/proc/loadavg: 0.95 0.98 0.94 2/107 24516
/proc/meminfo: memFree=799348/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=1042508 CPUtime=25.48
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 274972 0 0 0 2432 116 0 0 25 0 1 0 124316675 1067528192 250746 1992294400 134512640 136421960 4290004576 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24513/statm: 260627 250747 195 467 0 260158 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1042508



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+39.201 s]
/proc/loadavg: 0.96 0.98 0.94 2/107 24516
/proc/meminfo: memFree=20628/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=1846600 CPUtime=39.19
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4202496 490802 0 0 0 3712 207 0 0 25 0 1 0 124316675 1890918400 441866 1992294400 134512640 136421960 4290004576 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24513/statm: 461650 441867 195 467 0 461181 0
Current children cumulated CPU time (s) 39.19
Current children cumulated vsize (KiB) 1846600

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -24513

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

[startup+39.9012 s]
/proc/loadavg: 0.96 0.98 0.94 1/108 24517
/proc/meminfo: memFree=20124/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=1846600 CPUtime=39.19
/proc/24513/stat : 24513 (pbct) S 24511 24513 23625 0 -1 4194304 490807 0 0 0 3712 207 0 0 25 0 1 0 124316675 1890918400 441871 1992294400 134512640 136421960 4290004576 18446744073709551615 135884462 0 16384 4096 16387 18446604437829883904 0 0 17 1 0 0 0
/proc/24513/statm: 461650 441871 196 467 0 461181 0
Current children cumulated CPU time (s) 39.19
Current children cumulated vsize (KiB) 1846600

[startup+40.7003 s]
/proc/loadavg: 0.96 0.98 0.94 1/108 24517
/proc/meminfo: memFree=20124/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=1846600 CPUtime=39.19
/proc/24513/stat : 24513 (pbct) S 24511 24513 23625 0 -1 4194304 490807 0 0 0 3712 207 0 0 25 0 1 0 124316675 1890918400 441871 1992294400 134512640 136421960 4290004576 18446744073709551615 135884462 0 16384 4096 16387 18446604437829883904 0 0 17 1 0 0 0
/proc/24513/statm: 461650 441871 196 467 0 461181 0
Current children cumulated CPU time (s) 39.19
Current children cumulated vsize (KiB) 1846600

[startup+41.1004 s]
/proc/loadavg: 0.96 0.98 0.94 1/108 24517
/proc/meminfo: memFree=20124/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=1846600 CPUtime=39.19
/proc/24513/stat : 24513 (pbct) S 24511 24513 23625 0 -1 4194304 490807 0 0 0 3712 207 0 0 25 0 1 0 124316675 1890918400 441871 1992294400 134512640 136421960 4290004576 18446744073709551615 135884462 0 16384 4096 16387 18446604437829883904 0 0 17 1 0 0 0
/proc/24513/statm: 461650 441871 196 467 0 461181 0
Current children cumulated CPU time (s) 39.19
Current children cumulated vsize (KiB) 1846600

[startup+41.3005 s]
/proc/loadavg: 0.96 0.98 0.94 1/108 24517
/proc/meminfo: memFree=20124/2059040 swapFree=4139960/4192956
[pid=24513] ppid=24511 vsize=0 CPUtime=39.28
/proc/24513/stat : 24513 (pbct) R 24511 24513 23625 0 -1 4195332 490807 0 0 0 3712 216 0 0 18 0 1 0 124316675 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/24513/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 39.28
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 41.3854
CPU time (s): 39.37
CPU user time (s): 37.1214
CPU system time (s): 2.24866
CPU usage (%): 95.1303
Max. virtual memory (cumulated for all children) (KiB): 1846600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.1214
system time used= 2.24866
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490807
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= 467

runsolver used 0.06199 second user time and 0.215967 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-25 19:32:30
IDJOB=2682917
IDBENCH=2428
IDSOLVER=1192
FILE ID=node010/2682917-1277487149
PBS_JOBID= 11190526
Free space on /tmp= 62372 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-d2q06c.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682917-1277487149/watcher-2682917-1277487149 -o /tmp/evaluation-result-2682917-1277487149/solver-2682917-1277487149 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682917-1277487149.opb

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

MD5SUM BENCH= 7b03b498d913dd1b306399e53ada7e6f
RANDOM SEED=479048378

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1790396 kB
Buffers:         54800 kB
Cached:         113680 kB
SwapCached:       5536 kB
Active:          86240 kB
Inactive:        95224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1790396 kB
SwapTotal:     4192956 kB
SwapFree:      4139960 kB
Dirty:           19848 kB
Writeback:           0 kB
AnonPages:       11644 kB
Mapped:          11920 kB
Slab:            65304 kB
PageTables:       4152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183216 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= 62372 MiB
End job on node010 at 2010-06-25 19:33:12