Trace number 2682932

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) 84.6681 84.6879

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-80bau3b.opb
MD5SUMb2e886c31e082dd9f659f139112a12d7
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 benchmark9.35358
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables228540
Total number of constraints5191
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 constraints5191
Minimum length of a constraint10
Maximum length of a constraint3330
Number of terms in the objective function 182620
Biggest coefficient in the objective function 5315022028800000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 5549881707922194982
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 5315022028800000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 5549881707922194982
Number of bits of the biggest sum of numbers63
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
3.49/3.54	c constraints 4880/0 clauses 0/0 units 47788
3.49/3.54	c vars 228540
58.68/58.75	c objective 154706 + -113864847685599367
84.47/84.50	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-2682932-1277487553/watcher-2682932-1277487553 -o /tmp/evaluation-result-2682932-1277487553/solver-2682932-1277487553 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682932-1277487553.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: 1.00 1.00 1.00 3/106 29789
/proc/meminfo: memFree=1862340/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=2416 CPUtime=0
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 293 0 0 0 0 0 0 0 15 0 1 0 90046941 2473984 212 1992294400 134512640 136421960 4291981440 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 604 212 138 467 0 135 0

[startup+0.108449 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29789
/proc/meminfo: memFree=1862340/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=5864 CPUtime=0.1
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 1299 0 0 0 10 0 0 0 17 0 1 0 90046941 6004736 845 1992294400 134512640 136421960 4291981440 18446744073709551615 134530404 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 1466 846 138 467 0 997 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5864

[startup+0.201453 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29789
/proc/meminfo: memFree=1862340/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=10520 CPUtime=0.19
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 2384 0 0 0 19 0 0 0 17 0 1 0 90046941 10772480 1737 1992294400 134512640 136421960 4291981440 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 2630 1739 138 467 0 2161 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10520

[startup+0.300462 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29789
/proc/meminfo: memFree=1862340/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=9492 CPUtime=0.29
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 2696 0 0 0 28 1 0 0 17 0 1 0 90046941 9719808 1792 1992294400 134512640 136421960 4291981440 18446744073709551615 135372691 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 2373 1792 138 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700496 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29789
/proc/meminfo: memFree=1862340/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=16492 CPUtime=0.69
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 5052 0 0 0 68 1 0 0 17 0 1 0 90046941 16887808 3121 1992294400 134512640 136421960 4291981440 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 4123 3121 141 467 0 3654 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16492

[startup+1.50057 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1845592/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=27716 CPUtime=1.49
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 7815 0 0 0 147 2 0 0 18 0 1 0 90046941 28381184 5884 1992294400 134512640 136421960 4291981440 18446744073709551615 135378141 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 6929 5884 146 467 0 6460 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 27716

[startup+3.10071 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1825876/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=56244 CPUtime=3.09
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 14700 0 0 0 304 5 0 0 21 0 1 0 90046941 57593856 12769 1992294400 134512640 136421960 4291981440 18446744073709551615 135810699 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 14061 12769 146 467 0 13592 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 56244

[startup+6.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1807028/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=60496 CPUtime=6.29
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 15755 0 0 0 623 6 0 0 25 0 1 0 90046941 61947904 13824 1992294400 134512640 136421960 4291981440 18446744073709551615 134540156 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 15124 13824 150 467 0 14655 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 60496

[startup+12.7016 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1807028/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=60496 CPUtime=12.69
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 15755 0 0 0 1263 6 0 0 25 0 1 0 90046941 61947904 13824 1992294400 134512640 136421960 4291981440 18446744073709551615 135161837 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 15124 13824 150 467 0 14655 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 60496

[startup+25.5007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1807028/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=60496 CPUtime=25.49
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 15755 0 0 0 2543 6 0 0 25 0 1 0 90046941 61947904 13824 1992294400 134512640 136421960 4291981440 18446744073709551615 135161837 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 15124 13824 150 467 0 14655 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 60496

[startup+51.101 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29790
/proc/meminfo: memFree=1807028/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=60496 CPUtime=51.08
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 15755 0 0 0 5102 6 0 0 25 0 1 0 90046941 61947904 13824 1992294400 134512640 136421960 4291981440 18446744073709551615 135161837 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29789/statm: 15124 13824 150 467 0 14655 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 60496



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+84.501 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29792
/proc/meminfo: memFree=50444/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=1887952 CPUtime=84.47
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4202496 495466 0 0 0 8227 220 0 0 25 0 1 0 90046941 1933262848 453449 1992294400 134512640 136421960 4291981440 18446744073709551615 135829965 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29789/statm: 471988 453456 195 467 0 471519 0
Current children cumulated CPU time (s) 84.47
Current children cumulated vsize (KiB) 1887952

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

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

[startup+84.609 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29792
/proc/meminfo: memFree=50444/2059040 swapFree=4140316/4192956
[pid=29789] ppid=29787 vsize=0 CPUtime=84.57
/proc/29789/stat : 29789 (pbct) R 29787 29789 29127 0 -1 4194308 495529 0 0 0 8227 230 0 0 25 0 1 0 90046941 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29789/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 84.57
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 84.6879
CPU time (s): 84.6681
CPU user time (s): 82.2795
CPU system time (s): 2.38864
CPU usage (%): 99.9767
Max. virtual memory (cumulated for all children) (KiB): 1887952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 82.2795
system time used= 2.38864
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 495529
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= 974

runsolver used 0.134979 second user time and 0.430934 second system time

The end

Launcher Data 

Begin job on node051 at 2010-06-25 19:39:15
IDJOB=2682932
IDBENCH=2455
IDSOLVER=1192
FILE ID=node051/2682932-1277487553
PBS_JOBID= 11190495
Free space on /tmp= 62544 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-v2-20-10-80bau3b.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682932-1277487553/watcher-2682932-1277487553 -o /tmp/evaluation-result-2682932-1277487553/solver-2682932-1277487553 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682932-1277487553.opb

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

MD5SUM BENCH= b2e886c31e082dd9f659f139112a12d7
RANDOM SEED=1757871561

node051.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		: 3000.255
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	: 6000.51
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		: 3000.255
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	: 5599.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1862868 kB
Buffers:         16620 kB
Cached:          85772 kB
SwapCached:       5492 kB
Active:          36464 kB
Inactive:        78920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1862868 kB
SwapTotal:     4192956 kB
SwapFree:      4140316 kB
Dirty:           14124 kB
Writeback:           0 kB
AnonPages:       11580 kB
Mapped:          11900 kB
Slab:            58668 kB
PageTables:       4152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182768 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= 62544 MiB
End job on node051 at 2010-06-25 19:40:41