Trace number 2696401

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_cplex 2010-06-29OPT19 6.29404 3.78172

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos1.opb
MD5SUM374deb5d477559ba9c51d0ad1d758624
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark19
Best CPU time to get the best result obtained on this benchmark2.37564
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 19
Optimality of the best value was proved YES
Number of variables2112
Total number of constraints5020
Number of constraints which are clauses4128
Number of constraints which are cardinality constraints (but not clauses)216
Number of constraints which are nor clauses,nor cardinality constraints676
Minimum length of a constraint2
Maximum length of a constraint32
Number of terms in the objective function 288
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 288
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 5
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 288
Number of bits of the biggest sum of numbers9
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_cplex 1.0 - 20100701
0.00/0.00	c Parsing opb file format. File HOME/instance-2696401-1278016550.opb.
0.00/0.00	c Instance file HOME/instance-2696401-1278016550.opb
0.00/0.00	c File size is 214964 bytes.
0.00/0.12	c Highest Coefficient sum: 33
0.00/0.12	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
0.00/0.14	c ============================[ Problem Statistics ]=============================
0.00/0.14	c |                                                                             |
0.00/0.14	c |  Parsing time:          0.13         s                                      |
0.00/0.14	c |  Number Variables:      2112                                                |
0.00/0.14	c |  Number Constraints:    5020                                                |
0.00/0.14	c ===============================================================================
6.14/3.77	c Remaining time 1799.87 sec.
6.14/3.77	s OPTIMUM FOUND
6.14/3.77	c Solution value = 19.00
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x1612 x1613 x1614 x1615 x1616 x1617 x1618 x1619 x1620 x1621 x1622 x1623 x1624 x1625 x1626 x1627 x1628 x1629 x1630 x1631 x1632 x1633 x1634 x1635 x1636 x1637 x1638 x1639 x1640 x1641 x1642 x1643 x1644 x1645 x1646 x1647 x1648 x1649 x1650 x1651 x1652 x1653 x1654 x1655 x1656 x1657 x1658 x1659 x1660 x1661 x1662 x1663 x1664 x1665 x1666 x1667 x1668 x1669 x1670 x1671 x1672 x1673 x1674 x1675 x1676 x1677 x1678 x1679 x1680 x1681 x1682 x1683 x1684 x1685 x1686 x1687 x1688 x1689 x1690 x1691 x1692 x1693 x1694 x1695 x1696 x1697 x1698 x1699 x1700 x1701 x1702 x1703 x1704 x1705 x1706 x1707 x1708 x1709 x1710 x1711 x1712 x1713 x1714 x1715 x1716 x1717 x1718 x1719 x1720 x1721 x1722 x1723 x1724 x1725 x1726 x1727 x1728 x1729 x1730 x1731 x1732 x1733 x1734 x1735 x1736 x1737 x1738 x1739 x1740 x1741 x1742 x1743 x1744 x1745 x1746 x1747 x1748 x1749 x1750 x1751 x1752 x1753 x1754 x1755 x1756 x1757 x1758 x1759 x1760 x1761 x1762 x1763 x1764 x1765 x1766 x1767 x1768 x1769 x1770 x1771 x1772 x1773 x1774 x1775 x1776 x1777 x1778 x1779 x1780 x1781 x1782 x1783 x1784 x1785 x1786 x1787 x1788 x1789 x1790 x1791 x1792 x1793 x1794 x1795 x1796 x1797 x1798 x1799 x1800 x1801 x1802 x1803 x1804 x1805 x1806 x1807 x1808 x1809 x1810 x1811 x1812 x1813 x1814 x1815 x1816 x1817 x1818 x1819 x1820 x1821 x1822 x1823 x1824
6.14/3.77	c Total CPU time              : 6.22005 s

Verifier Data 

OK	19

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2696401-1278016550/watcher-2696401-1278016550 -o /tmp/evaluation-result-2696401-1278016550/solver-2696401-1278016550 -C 1800 -W 2000 -M 1800 run HOME/instance-2696401-1278016550.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: 1.98 1.97 1.51 3/106 28510
/proc/meminfo: memFree=1469692/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0

[startup+0.0627931 s]
/proc/loadavg: 1.98 1.97 1.51 3/106 28510
/proc/meminfo: memFree=1469692/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.1018 s]
/proc/loadavg: 1.98 1.97 1.51 3/106 28510
/proc/meminfo: memFree=1469692/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300796 s]
/proc/loadavg: 1.98 1.97 1.51 3/106 28510
/proc/meminfo: memFree=1469692/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700792 s]
/proc/loadavg: 1.98 1.97 1.51 3/106 28510
/proc/meminfo: memFree=1469692/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50078 s]
/proc/loadavg: 1.90 1.96 1.50 2/109 28513
/proc/meminfo: memFree=1456400/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
[pid=28511] ppid=28510 vsize=40272 CPUtime=2.21
/proc/28511/stat : 28511 (pb_cplex) S 28510 28510 28293 0 -1 4202496 5782 0 0 0 217 4 0 0 16 0 2 0 142946995 41238528 4372 1992294400 134512640 146736320 4289069824 18446744073709551615 144580073 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28511/statm: 10068 4372 1069 2985 0 6610 0
[pid=28511/tid=28513] ppid=28510 vsize=40272 CPUtime=0.98
/proc/28511/task/28513/stat : 28513 (pb_cplex) R 28510 28510 28293 0 -1 4202560 747 0 0 0 97 1 0 0 21 0 2 0 142947040 41238528 4372 1992294400 134512640 146736320 4289069824 18446744073709551615 136385172 0 2 4096 16387 0 0 0 -1 1 0 0 0
Current children cumulated CPU time (s) 2.21
Current children cumulated vsize (KiB) 48972

[startup+3.10077 s]
/proc/loadavg: 1.90 1.96 1.50 3/109 28513
/proc/meminfo: memFree=1453672/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
[pid=28511] ppid=28510 vsize=41492 CPUtime=5.03
/proc/28511/stat : 28511 (pb_cplex) R 28510 28510 28293 0 -1 4202496 6478 0 0 0 497 6 0 0 16 0 2 0 142946995 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 144757825 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28511/statm: 10373 4649 1069 2985 0 6915 0
[pid=28511/tid=28513] ppid=28510 vsize=41492 CPUtime=2.38
/proc/28511/task/28513/stat : 28513 (pb_cplex) R 28510 28510 28293 0 -1 4202560 1233 0 0 0 237 1 0 0 23 0 2 0 142947040 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 136001199 0 2 4096 16387 0 0 0 -1 1 0 0 0
Current children cumulated CPU time (s) 5.03
Current children cumulated vsize (KiB) 50192

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

[startup+3.50076 s]
/proc/loadavg: 1.90 1.96 1.50 3/109 28513
/proc/meminfo: memFree=1454292/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
[pid=28511] ppid=28510 vsize=41492 CPUtime=5.79
/proc/28511/stat : 28511 (pb_cplex) R 28510 28510 28293 0 -1 4202496 6478 0 0 0 573 6 0 0 16 0 2 0 142946995 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 144757825 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28511/statm: 10373 4649 1069 2985 0 6915 0
[pid=28511/tid=28513] ppid=28510 vsize=41492 CPUtime=2.78
/proc/28511/task/28513/stat : 28513 (pb_cplex) R 28510 28510 28293 0 -1 4202560 1233 0 0 0 276 2 0 0 25 0 2 0 142947040 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 135468697 0 2 4096 16387 0 0 0 -1 1 0 0 0
Current children cumulated CPU time (s) 5.79
Current children cumulated vsize (KiB) 50192

[startup+3.70076 s]
/proc/loadavg: 1.90 1.96 1.50 3/109 28513
/proc/meminfo: memFree=1454292/2059040 swapFree=4136140/4192956
[pid=28510] ppid=28508 vsize=8700 CPUtime=0
/proc/28510/stat : 28510 (run) S 28508 28510 28293 0 -1 4202496 365 0 0 0 0 0 0 0 18 0 1 0 142946995 8908800 249 1992294400 4194304 4922060 140734505014576 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28510/statm: 2175 249 208 178 0 68 0
[pid=28511] ppid=28510 vsize=41492 CPUtime=6.14
/proc/28511/stat : 28511 (pb_cplex) R 28510 28510 28293 0 -1 4202496 6478 0 0 0 608 6 0 0 16 0 2 0 142946995 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 138378123 0 0 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28511/statm: 10373 4649 1069 2985 0 6915 0
[pid=28511/tid=28513] ppid=28510 vsize=41492 CPUtime=2.97
/proc/28511/task/28513/stat : 28513 (pb_cplex) R 28510 28510 28293 0 -1 4202560 1233 0 0 0 295 2 0 0 25 0 2 0 142947040 42487808 4649 1992294400 134512640 146736320 4289069824 18446744073709551615 135443438 0 2 4096 16387 0 0 0 -1 1 0 0 0
Current children cumulated CPU time (s) 6.14
Current children cumulated vsize (KiB) 50192

Child status: 0
Real time (s): 3.78172
CPU time (s): 6.29404
CPU user time (s): 6.22205
CPU system time (s): 0.071989
CPU usage (%): 166.434
Max. virtual memory (cumulated for all children) (KiB): 51216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.22205
system time used= 0.071989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6873
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= 1005
involuntary context switches= 104

runsolver used 0.007998 second user time and 0.030995 second system time

The end

Launcher Data 

Begin job on node047 at 2010-07-01 22:35:50
IDJOB=2696401
IDBENCH=1850
IDSOLVER=1209
FILE ID=node047/2696401-1278016550
PBS_JOBID= 11198718
Free space on /tmp= 62388 MiB

SOLVER NAME= pb_cplex 2010-06-29
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos1.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2696401-1278016550/watcher-2696401-1278016550 -o /tmp/evaluation-result-2696401-1278016550/solver-2696401-1278016550 -C 1800 -W 2000 -M 1800  run HOME/instance-2696401-1278016550.opb

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

MD5SUM BENCH= 374deb5d477559ba9c51d0ad1d758624
RANDOM SEED=1417139303

node047.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		: 3000.244
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		: 3000.244
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:       1470220 kB
Buffers:        140516 kB
Cached:         343568 kB
SwapCached:       9696 kB
Active:         238752 kB
Inactive:       258460 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1470220 kB
SwapTotal:     4192956 kB
SwapFree:      4136140 kB
Dirty:           16748 kB
Writeback:           0 kB
AnonPages:       11688 kB
Mapped:           8340 kB
Slab:            69616 kB
PageTables:       4224 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180664 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 node047 at 2010-07-01 22:35:54