Trace number 2681969

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) 25.7881 25.7961

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-stp3d.opb
MD5SUMaf54d857fe3562002a714e0fbd74a69a
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 variables204880
Total number of constraints159488
Number of constraints which are clauses129232
Number of constraints which are cardinality constraints (but not clauses)5805
Number of constraints which are nor clauses,nor cardinality constraints24451
Minimum length of a constraint2
Maximum length of a constraint120
Number of terms in the objective function 75648
Biggest coefficient in the objective function 100303
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 7576279200
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 100303
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 7576279200
Number of bits of the biggest sum of numbers33
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
2.59/2.60	c constraints 30256/0 clauses 129232/0 units 0
2.59/2.60	c vars 204880
2.59/2.60	c objective 75648 + 0
25.60/25.61	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-2681969-1277489019/watcher-2681969-1277489019 -o /tmp/evaluation-result-2681969-1277489019/solver-2681969-1277489019 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681969-1277489019.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 26133
/proc/meminfo: memFree=1763256/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=2416 CPUtime=0
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 291 0 0 0 0 0 0 0 18 0 1 0 124503584 2473984 211 1992294400 134512640 136421960 4288522528 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 604 211 135 467 0 135 0

[startup+0.017834 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26133
/proc/meminfo: memFree=1763256/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=2680 CPUtime=0.01
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 356 0 0 0 1 0 0 0 20 0 1 0 124503584 2744320 276 1992294400 134512640 136421960 4288522528 18446744073709551615 135372664 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 670 276 135 467 0 201 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2680

[startup+0.10085 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26133
/proc/meminfo: memFree=1763256/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=5864 CPUtime=0.09
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 1313 0 0 0 9 0 0 0 20 0 1 0 124503584 6004736 860 1992294400 134512640 136421960 4288522528 18446744073709551615 135153472 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 1466 860 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.300885 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26133
/proc/meminfo: memFree=1763256/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=9492 CPUtime=0.29
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 2479 0 0 0 29 0 0 0 20 0 1 0 124503584 9719808 1576 1992294400 134512640 136421960 4288522528 18446744073709551615 135158939 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 2373 1576 137 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700957 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26133
/proc/meminfo: memFree=1763256/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=12324 CPUtime=0.69
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 3155 0 0 0 68 1 0 0 20 0 1 0 124503584 12619776 2252 1992294400 134512640 136421960 4288522528 18446744073709551615 135372694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 3081 2253 145 467 0 2612 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12324

[startup+1.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=1744896/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=37900 CPUtime=1.49
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 9563 0 0 0 146 3 0 0 23 0 1 0 124503584 38809600 8660 1992294400 134512640 136421960 4288522528 18446744073709551615 135378151 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26133/statm: 9475 8660 145 467 0 9006 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37900

[startup+3.10139 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=1721336/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=110084 CPUtime=3.09
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 27432 0 0 0 298 11 0 0 25 0 1 0 124503584 112726016 26529 1992294400 134512640 136421960 4288522528 18446744073709551615 135812090 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26133/statm: 27521 26530 188 467 0 27052 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 110084

[startup+6.30096 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=1412700/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=453096 CPUtime=6.29
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 116948 0 0 0 578 51 0 0 25 0 1 0 124503584 463970304 110606 1992294400 134512640 136421960 4288522528 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26133/statm: 113274 110608 188 467 0 112805 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 453096

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=863008/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=943164 CPUtime=12.68
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 247910 0 0 0 1163 105 0 0 25 0 1 0 124503584 965799936 232424 1992294400 134512640 136421960 4288522528 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26133/statm: 235791 232424 193 467 0 235322 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 943164

[startup+25.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=9320/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=1842140 CPUtime=25.48
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 489056 0 0 0 2333 215 0 0 25 0 1 0 124503584 1886351360 442329 1992294400 134512640 136421960 4288522528 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26133/statm: 460535 442330 193 467 0 460066 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1842140



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+25.61 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=10600/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=1850324 CPUtime=25.6
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4202496 491196 0 0 0 2344 216 0 0 25 0 1 0 124503584 1894731776 444469 1992294400 134512640 136421960 4288522528 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26133/statm: 462581 444470 193 467 0 462112 0
Current children cumulated CPU time (s) 25.6
Current children cumulated vsize (KiB) 1850324

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

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

[startup+25.7094 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 26134
/proc/meminfo: memFree=10600/2059040 swapFree=4136480/4192956
[pid=26133] ppid=26131 vsize=0 CPUtime=25.7
/proc/26133/stat : 26133 (pbct) R 26131 26133 25212 0 -1 4194308 491206 0 0 0 2344 226 0 0 25 0 1 0 124503584 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/26133/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 25.7
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 25.7961
CPU time (s): 25.7881
CPU user time (s): 23.4404
CPU system time (s): 2.34764
CPU usage (%): 99.9689
Max. virtual memory (cumulated for all children) (KiB): 1850324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.4404
system time used= 2.34764
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491206
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= 44

runsolver used 0.054991 second user time and 0.12598 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-25 20:03:40
IDJOB=2681969
IDBENCH=2522
IDSOLVER=1192
FILE ID=node012/2681969-1277489019
PBS_JOBID= 11190524
Free space on /tmp= 62420 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-stp3d.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681969-1277489019/watcher-2681969-1277489019 -o /tmp/evaluation-result-2681969-1277489019/solver-2681969-1277489019 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681969-1277489019.opb

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

MD5SUM BENCH= af54d857fe3562002a714e0fbd74a69a
RANDOM SEED=959964620

node012.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		: 3000.258
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		: 3000.258
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:       1763660 kB
Buffers:         56708 kB
Cached:         138032 kB
SwapCached:       9008 kB
Active:          80100 kB
Inactive:       127604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1763660 kB
SwapTotal:     4192956 kB
SwapFree:      4136480 kB
Dirty:           10944 kB
Writeback:           0 kB
AnonPages:       11636 kB
Mapped:           8320 kB
Slab:            65776 kB
PageTables:       4176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181924 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= 62420 MiB
End job on node012 at 2010-06-25 20:04:08