Trace number 2668355

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? (MO) 42.2746 42.2898

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-wood1p.opb
MD5SUM360101c0d249c34bf56133c11582c641
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
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables77820
Total number of constraints244
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 constraints244
Minimum length of a constraint30
Maximum length of a constraint77760
Number of terms in the objective function 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 53687091200000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 66413144120266880244
Number of bits of the biggest sum of numbers66
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
8.28/8.35	c constraints 244/0 clauses 0/0 units 0
8.28/8.35	c vars 77820
8.28/8.35	c objective 30 + 0
42.08/42.11	s UNKNOWN

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-2668355-1276554543/watcher-2668355-1276554543 -o /tmp/evaluation-result-2668355-1276554543/solver-2668355-1276554543 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668355-1276554543.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 1.05 3/106 31682
/proc/meminfo: memFree=1748144/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=2492 CPUtime=0
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 305 0 0 0 0 0 0 0 18 0 1 0 31058083 2551808 228 1992294400 134512640 136485738 4289011344 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 623 228 153 482 0 139 0

[startup+0.0447589 s]
/proc/loadavg: 0.92 0.98 1.05 3/106 31682
/proc/meminfo: memFree=1748144/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=3080 CPUtime=0.04
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 486 0 0 0 4 0 0 0 18 0 1 0 31058083 3153920 376 1992294400 134512640 136485738 4289011344 18446744073709551615 135177508 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 770 376 155 482 0 286 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3080

[startup+0.10077 s]
/proc/loadavg: 0.92 0.98 1.05 3/106 31682
/proc/meminfo: memFree=1748144/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=4080 CPUtime=0.09
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 694 0 0 0 9 0 0 0 21 0 1 0 31058083 4177920 584 1992294400 134512640 136485738 4289011344 18446744073709551615 135689873 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 1020 584 155 482 0 536 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4080

[startup+0.301807 s]
/proc/loadavg: 0.92 0.98 1.05 3/106 31682
/proc/meminfo: memFree=1748144/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=8032 CPUtime=0.29
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 1539 0 0 0 29 0 0 0 21 0 1 0 31058083 8224768 1429 1992294400 134512640 136485738 4289011344 18446744073709551615 135177477 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 2008 1429 155 482 0 1524 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8032

[startup+0.70088 s]
/proc/loadavg: 0.92 0.98 1.05 3/106 31682
/proc/meminfo: memFree=1748144/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=15492 CPUtime=0.69
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 3109 0 0 0 68 1 0 0 22 0 1 0 31058083 15863808 2999 1992294400 134512640 136485738 4289011344 18446744073709551615 135415673 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 3873 2999 155 482 0 3389 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15492

[startup+1.50103 s]
/proc/loadavg: 1.01 1.00 1.06 2/107 31683
/proc/meminfo: memFree=1732636/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=29728 CPUtime=1.49
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 6182 0 0 0 145 4 0 0 25 0 1 0 31058083 30441472 6072 1992294400 134512640 136485738 4289011344 18446744073709551615 135180347 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 7432 6072 155 482 0 6948 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 29728

[startup+3.10032 s]
/proc/loadavg: 1.01 1.00 1.06 2/107 31683
/proc/meminfo: memFree=1716020/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=56664 CPUtime=3.09
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 12176 0 0 0 302 7 0 0 25 0 1 0 31058083 58023936 12066 1992294400 134512640 136485738 4289011344 18446744073709551615 135848202 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 14166 12066 155 482 0 13682 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 56664

[startup+6.30091 s]
/proc/loadavg: 1.01 1.00 1.06 2/107 31683
/proc/meminfo: memFree=1666420/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=111568 CPUtime=6.29
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 24936 0 0 0 617 12 0 0 25 0 1 0 31058083 114245632 23841 1992294400 134512640 136485738 4289011344 18446744073709551615 135178807 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31682/statm: 27892 23841 155 482 0 27408 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 111568

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31683
/proc/meminfo: memFree=1408624/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=405412 CPUtime=12.69
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 102475 0 0 0 1227 42 0 0 25 0 1 0 31058083 415141888 93853 1992294400 134512640 136485738 4289011344 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31682/statm: 101353 93854 197 482 0 100869 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 405412

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31683
/proc/meminfo: memFree=770644/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=1043884 CPUtime=25.48
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 276936 0 0 0 2433 115 0 0 25 0 1 0 31058083 1068937216 248307 1992294400 134512640 136485738 4289011344 18446744073709551615 135446485 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31682/statm: 260971 248307 197 482 0 260487 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1043884



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+42.1026 s]
/proc/loadavg: 1.00 1.00 1.05 2/107 31683
/proc/meminfo: memFree=10744/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=1845892 CPUtime=42.08
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4202496 496580 0 0 0 4004 204 0 0 25 0 1 0 31058083 1890193408 441121 1992294400 134512640 136485738 4289011344 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31682/statm: 461473 441122 197 482 0 460989 0
Current children cumulated CPU time (s) 42.08
Current children cumulated vsize (KiB) 1845892

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

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

[startup+42.2096 s]
/proc/loadavg: 1.00 1.00 1.05 2/107 31683
/proc/meminfo: memFree=10744/2059040 swapFree=4140428/4192956
[pid=31682] ppid=31680 vsize=0 CPUtime=42.18
/proc/31682/stat : 31682 (pbct) R 31680 31682 31555 0 -1 4194308 496586 0 0 0 4004 214 0 0 25 0 1 0 31058083 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31682/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 42.18
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 42.2898
CPU time (s): 42.2746
CPU user time (s): 40.0469
CPU system time (s): 2.22766
CPU usage (%): 99.964
Max. virtual memory (cumulated for all children) (KiB): 1845892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.0469
system time used= 2.22766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 496586
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= 1
involuntary context switches= 505

runsolver used 0.088986 second user time and 0.199969 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-15 00:29:06
IDJOB=2668355
IDBENCH=2441
IDSOLVER=1170
FILE ID=node007/2668355-1276554543
PBS_JOBID= 11173495
Free space on /tmp= 62452 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-wood1p.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668355-1276554543/watcher-2668355-1276554543 -o /tmp/evaluation-result-2668355-1276554543/solver-2668355-1276554543 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668355-1276554543.opb

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

MD5SUM BENCH= 360101c0d249c34bf56133c11582c641
RANDOM SEED=1481805200

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1748300 kB
Buffers:         80000 kB
Cached:         147972 kB
SwapCached:       6248 kB
Active:         115028 kB
Inactive:       126124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1748300 kB
SwapTotal:     4192956 kB
SwapFree:      4140428 kB
Dirty:           35536 kB
Writeback:           0 kB
AnonPages:       11496 kB
Mapped:          12988 kB
Slab:            47504 kB
PageTables:       3992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180976 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= 62452 MiB
End job on node007 at 2010-06-15 00:29:50