Trace number 2682906

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 fixedUNSAT 4.99024 4.99192

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-brandy.opb
MD5SUM913c17bb7faa6362a8688d6500a7e54d
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 benchmark3.05253
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables7470
Total number of constraints182
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 constraints182
Minimum length of a constraint30
Maximum length of a constraint3540
Number of terms in the objective function 60
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 2147483646
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 10936060477440
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 138160507849056
Number of bits of the biggest sum of numbers47
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
0.19/0.26	c constraints 173/0 clauses 0/0 units 1190
0.19/0.26	c vars 7470
0.19/0.26	c objective 60 + 0
3.79/3.82	c 3.57646 222.445 11 8427
4.89/4.96	s UNSATISFIABLE

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-2682906-1277486591/watcher-2682906-1277486591 -o /tmp/evaluation-result-2682906-1277486591/solver-2682906-1277486591 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682906-1277486591.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 0.96 3/106 28464
/proc/meminfo: memFree=1802748/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=2268 CPUtime=0
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 282 0 0 0 0 0 0 0 18 0 1 0 89951494 2322432 202 1992294400 134512640 136421960 4292078320 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28464/statm: 567 202 146 467 0 98 0

[startup+0.100834 s]
/proc/loadavg: 0.92 0.98 0.96 3/106 28464
/proc/meminfo: memFree=1802748/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=4284 CPUtime=0.09
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 774 0 0 0 9 0 0 0 21 0 1 0 89951494 4386816 694 1992294400 134512640 136421960 4292078320 18446744073709551615 135378173 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28464/statm: 1071 697 146 467 0 602 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4284

[startup+0.201842 s]
/proc/loadavg: 0.92 0.98 0.96 3/106 28464
/proc/meminfo: memFree=1802748/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=6440 CPUtime=0.19
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 1304 0 0 0 19 0 0 0 21 0 1 0 89951494 6594560 1224 1992294400 134512640 136421960 4292078320 18446744073709551615 134541193 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28464/statm: 1610 1224 146 467 0 1141 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6440

[startup+0.301851 s]
/proc/loadavg: 0.92 0.98 0.96 3/106 28464
/proc/meminfo: memFree=1802748/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=11928 CPUtime=0.29
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 2646 0 0 0 28 1 0 0 21 0 1 0 89951494 12214272 2566 1992294400 134512640 136421960 4292078320 18446744073709551615 135809982 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 2982 2567 195 467 0 2513 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11928

[startup+0.701886 s]
/proc/loadavg: 0.92 0.98 0.96 3/106 28464
/proc/meminfo: memFree=1802748/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=43156 CPUtime=0.69
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 10738 0 0 0 65 4 0 0 22 0 1 0 89951494 44191744 10219 1992294400 134512640 136421960 4292078320 18446744073709551615 134706124 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 10789 10220 195 467 0 10320 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 43156

[startup+1.50196 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1735036/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=92820 CPUtime=1.49
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 24141 0 0 0 140 9 0 0 25 0 1 0 89951494 95047680 22688 1992294400 134512640 136421960 4292078320 18446744073709551615 135308256 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 23205 22689 195 467 0 22736 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 92820

[startup+3.1011 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1671424/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=212992 CPUtime=3.09
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 55657 0 0 0 287 22 0 0 25 0 1 0 89951494 218103808 51466 1992294400 134512640 136421960 4292078320 18446744073709551615 135810833 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 53248 51467 205 467 0 52779 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 212992

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

[startup+3.20111 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1671424/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=213980 CPUtime=3.19
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 55891 0 0 0 297 22 0 0 25 0 1 0 89951494 219115520 51700 1992294400 134512640 136421960 4292078320 18446744073709551615 134843458 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 53495 51700 205 467 0 53026 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 213980

[startup+4.00118 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1594544/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=217160 CPUtime=3.99
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 59485 0 0 0 375 24 0 0 25 0 1 0 89951494 222371840 52839 1992294400 134512640 136421960 4292078320 18446744073709551615 135801172 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 54290 52839 240 467 0 53821 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 217160

[startup+4.40122 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1597148/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=210484 CPUtime=4.4
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 59485 0 0 0 416 24 0 0 25 0 1 0 89951494 215535616 51239 1992294400 134512640 136421960 4292078320 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 52621 51239 240 467 0 52152 0
Current children cumulated CPU time (s) 4.4
Current children cumulated vsize (KiB) 210484

[startup+4.80125 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1597148/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=210484 CPUtime=4.79
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 59485 0 0 0 455 24 0 0 25 0 1 0 89951494 215535616 51239 1992294400 134512640 136421960 4292078320 18446744073709551615 135818225 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 52621 51239 240 467 0 52152 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 210484

[startup+4.90126 s]
/proc/loadavg: 0.92 0.98 0.96 2/107 28465
/proc/meminfo: memFree=1597148/2059040 swapFree=4140380/4192956
[pid=28464] ppid=28462 vsize=197652 CPUtime=4.89
/proc/28464/stat : 28464 (pbct) R 28462 28464 27889 0 -1 4202496 59485 0 0 0 465 24 0 0 25 0 1 0 89951494 202395648 49100 1992294400 134512640 136421960 4292078320 18446744073709551615 135801301 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28464/statm: 49413 49100 240 467 0 48944 0
Current children cumulated CPU time (s) 4.89
Current children cumulated vsize (KiB) 197652

Child status: 0
Real time (s): 4.99192
CPU time (s): 4.99024
CPU user time (s): 4.72028
CPU system time (s): 0.269958
CPU usage (%): 99.9663
Max. virtual memory (cumulated for all children) (KiB): 227780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.72028
system time used= 0.269958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 59486
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= 64

runsolver used 0.008998 second user time and 0.031995 second system time

The end

Launcher Data 

Begin job on node043 at 2010-06-25 19:23:11
IDJOB=2682906
IDBENCH=2401
IDSOLVER=1192
FILE ID=node043/2682906-1277486591
PBS_JOBID= 11190502
Free space on /tmp= 62288 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-brandy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682906-1277486591/watcher-2682906-1277486591 -o /tmp/evaluation-result-2682906-1277486591/solver-2682906-1277486591 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682906-1277486591.opb

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

MD5SUM BENCH= 913c17bb7faa6362a8688d6500a7e54d
RANDOM SEED=1562299928

node043.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		: 3000.241
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	: 6000.48
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		: 3000.241
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	: 5599.37
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1803152 kB
Buffers:         32320 kB
Cached:         124656 kB
SwapCached:       5436 kB
Active:          70072 kB
Inactive:       100012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1803152 kB
SwapTotal:     4192956 kB
SwapFree:      4140380 kB
Dirty:            2760 kB
Writeback:           0 kB
AnonPages:       11748 kB
Mapped:          12052 kB
Slab:            63680 kB
PageTables:       4072 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183316 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= 62288 MiB
End job on node043 at 2010-06-25 19:23:16