Trace number 2668354

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) 34.4678 34.4842

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-greenbea.opb
MD5SUMfed9726f7ff3b53e29a48b8849ad3d9b
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 variables155427
Total number of constraints2674
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 constraints2674
Minimum length of a constraint11
Maximum length of a constraint7267
Number of terms in the objective function 15205
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 11303756896327816
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 24454743822989865
Number of bits of the biggest sum of numbers55
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
3.20/3.28	c constraints 2674/0 clauses 0/0 units 369
3.20/3.28	c vars 155427
3.20/3.28	c objective 15205 + -5446673580575230
34.28/34.30	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-2668354-1276554114/watcher-2668354-1276554114 -o /tmp/evaluation-result-2668354-1276554114/solver-2668354-1276554114 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668354-1276554114.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 0.99 2/106 32639
/proc/meminfo: memFree=1798672/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=2488 CPUtime=0
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 302 0 0 0 0 0 0 0 17 0 1 0 31015229 2547712 224 1992294400 134512640 136485738 4293340640 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 622 225 151 482 0 138 0

[startup+0.075395 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 32639
/proc/meminfo: memFree=1798672/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=3340 CPUtime=0.07
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 583 0 0 0 7 0 0 0 17 0 1 0 31015229 3420160 472 1992294400 134512640 136485738 4293340640 18446744073709551615 135857125 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 835 472 156 482 0 351 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3340

[startup+0.100398 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 32639
/proc/meminfo: memFree=1798672/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=4000 CPUtime=0.09
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 723 0 0 0 9 0 0 0 17 0 1 0 31015229 4096000 612 1992294400 134512640 136485738 4293340640 18446744073709551615 135688775 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 1000 612 156 482 0 516 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4000

[startup+0.300421 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 32639
/proc/meminfo: memFree=1798672/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=8096 CPUtime=0.29
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 1758 0 0 0 29 0 0 0 17 0 1 0 31015229 8290304 1647 1992294400 134512640 136485738 4293340640 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 2024 1648 156 482 0 1540 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8096

[startup+0.700467 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 32639
/proc/meminfo: memFree=1798672/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=16256 CPUtime=0.69
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 3749 0 0 0 68 1 0 0 17 0 1 0 31015229 16646144 3638 1992294400 134512640 136485738 4293340640 18446744073709551615 135180818 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 4064 3638 156 482 0 3580 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16256

[startup+1.50056 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 32640
/proc/meminfo: memFree=1779072/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=32356 CPUtime=1.49
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 7504 0 0 0 147 2 0 0 18 0 1 0 31015229 33132544 7393 1992294400 134512640 136485738 4293340640 18446744073709551615 135411121 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 8089 7393 156 482 0 7605 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32356

[startup+3.10074 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 32640
/proc/meminfo: memFree=1757124/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=63004 CPUtime=3.09
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 14694 0 0 0 303 6 0 0 21 0 1 0 31015229 64516096 14583 1992294400 134512640 136485738 4293340640 18446744073709551615 135857024 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32639/statm: 15751 14583 157 482 0 15267 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63004

[startup+6.30111 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 32640
/proc/meminfo: memFree=1574472/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=292808 CPUtime=6.29
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 74744 0 0 0 597 32 0 0 25 0 1 0 31015229 299835392 71657 1992294400 134512640 136485738 4293340640 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32639/statm: 73202 71658 197 482 0 72718 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 292808

[startup+12.7009 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 32640
/proc/meminfo: memFree=1157336/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=697956 CPUtime=12.69
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 181734 0 0 0 1189 80 0 0 25 0 1 0 31015229 714706944 169998 1992294400 134512640 136485738 4293340640 18446744073709551615 134719603 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32639/statm: 174489 169999 197 482 0 174005 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 697956

[startup+25.5003 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32642
/proc/meminfo: memFree=483272/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=1351236 CPUtime=25.48
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 357532 0 0 0 2396 152 0 0 25 0 1 0 31015229 1383665664 332229 1992294400 134512640 136485738 4293340640 18446744073709551615 135869175 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32639/statm: 337809 332230 197 482 0 337325 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1351236



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.3004 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32642
/proc/meminfo: memFree=28688/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=1846564 CPUtime=34.28
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4202496 490779 0 0 0 3220 208 0 0 25 0 1 0 31015229 1890881536 441926 1992294400 134512640 136485738 4293340640 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32639/statm: 461641 441927 197 482 0 461157 0
Current children cumulated CPU time (s) 34.28
Current children cumulated vsize (KiB) 1846564

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

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

[startup+34.4084 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32642
/proc/meminfo: memFree=28688/2059040 swapFree=4140012/4192956
[pid=32639] ppid=32637 vsize=0 CPUtime=34.38
/proc/32639/stat : 32639 (pbct) R 32637 32639 32258 0 -1 4194308 490787 0 0 0 3220 218 0 0 25 0 1 0 31015229 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/32639/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.38
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.4842
CPU time (s): 34.4678
CPU user time (s): 32.2071
CPU system time (s): 2.26066
CPU usage (%): 99.9522
Max. virtual memory (cumulated for all children) (KiB): 1846564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.2071
system time used= 2.26066
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490787
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= 95

runsolver used 0.06199 second user time and 0.174973 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-15 00:21:56
IDJOB=2668354
IDBENCH=2438
IDSOLVER=1170
FILE ID=node006/2668354-1276554114
PBS_JOBID= 11173484
Free space on /tmp= 62460 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-greenbea.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668354-1276554114/watcher-2668354-1276554114 -o /tmp/evaluation-result-2668354-1276554114/solver-2668354-1276554114 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668354-1276554114.opb

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

MD5SUM BENCH= fed9726f7ff3b53e29a48b8849ad3d9b
RANDOM SEED=43775505

node006.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		: 3000.204
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	: 6000.40
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		: 3000.204
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:       1799068 kB
Buffers:         39680 kB
Cached:         140216 kB
SwapCached:       6612 kB
Active:          98780 kB
Inactive:        94792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1799068 kB
SwapTotal:     4192956 kB
SwapFree:      4140012 kB
Dirty:           16184 kB
Writeback:           0 kB
AnonPages:       12028 kB
Mapped:          13116 kB
Slab:            44568 kB
PageTables:       4004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182572 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= 62460 MiB
End job on node006 at 2010-06-15 00:22:32