Trace number 2668573

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) 84.8261 84.8744

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-ds.opb
MD5SUM7478f253a8ff3e29c2a001743623a20c
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
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 764056
Optimality of the best value was proved NO
Number of variables1354640
Total number of constraints656
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 constraints656
Minimum length of a constraint640
Maximum length of a constraint129180
Number of terms in the objective function 1354640
Biggest coefficient in the objective function 1732247552
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 49715233983525
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 1732247552
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 49715233983525
Number of bits of the biggest sum of numbers46
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
82.66/82.75	c constraints 656/0 clauses 0/0 units 0
82.66/82.75	c vars 1354640
82.66/82.77	c objective 1354640 + 0
84.66/84.71	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-2668573-1276570006/watcher-2668573-1276570006 -o /tmp/evaluation-result-2668573-1276570006/solver-2668573-1276570006 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668573-1276570006.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 1.06 3/106 31239
/proc/meminfo: memFree=1436944/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=2488 CPUtime=0
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 305 0 0 0 0 0 0 0 24 0 1 0 30654382 2547712 228 1992294400 134512640 136485738 4290897936 18446744073709551615 135177442 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 622 228 151 482 0 138 0

[startup+0.0665939 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 31239
/proc/meminfo: memFree=1436944/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=4080 CPUtime=0.06
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 789 0 0 0 6 0 0 0 24 0 1 0 30654382 4177920 565 1992294400 134512640 136485738 4290897936 18446744073709551615 135562730 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 1020 565 151 482 0 536 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4080

[startup+0.1016 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 31239
/proc/meminfo: memFree=1436944/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=5936 CPUtime=0.09
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 1308 0 0 0 9 0 0 0 24 0 1 0 30654382 6078464 858 1992294400 134512640 136485738 4290897936 18446744073709551615 135857039 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 1484 859 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301636 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 31239
/proc/meminfo: memFree=1436944/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=9828 CPUtime=0.29
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 2823 0 0 0 28 1 0 0 25 0 1 0 30654382 10063872 1923 1992294400 134512640 136485738 4290897936 18446744073709551615 135180722 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 2457 1924 151 482 0 1973 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9828

[startup+0.701709 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 31239
/proc/meminfo: memFree=1436944/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=26408 CPUtime=0.7
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 6954 0 0 0 67 3 0 0 25 0 1 0 30654382 27041792 5027 1992294400 134512640 136485738 4290897936 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 6602 5030 151 482 0 6118 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 26408

[startup+1.50086 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31240
/proc/meminfo: memFree=1413624/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=67684 CPUtime=1.49
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 17575 0 0 0 143 6 0 0 25 0 1 0 30654382 69308416 11547 1992294400 134512640 136485738 4290897936 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 16921 11551 151 482 0 16437 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 67684

[startup+3.10114 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31240
/proc/meminfo: memFree=1390684/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=133196 CPUtime=3.09
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 36923 0 0 0 294 15 0 0 25 0 1 0 30654382 136392704 22624 1992294400 134512640 136485738 4290897936 18446744073709551615 135916833 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 33299 22624 151 482 0 32815 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 133196

[startup+6.30073 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31240
/proc/meminfo: memFree=1347904/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=116808 CPUtime=6.29
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 39315 0 0 0 612 17 0 0 25 0 1 0 30654382 119611392 23043 1992294400 134512640 136485738 4290897936 18446744073709551615 134540959 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 29202 23043 153 482 0 28718 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 116808

[startup+12.7009 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31242
/proc/meminfo: memFree=1258004/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=242808 CPUtime=12.68
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 67898 0 0 0 1238 30 0 0 25 0 1 0 30654382 248635392 48530 1992294400 134512640 136485738 4290897936 18446744073709551615 135180811 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 60702 48530 155 482 0 60218 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 242808

[startup+25.5012 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 31242
/proc/meminfo: memFree=1025132/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=513292 CPUtime=25.48
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 130791 0 0 0 2490 58 0 0 25 0 1 0 30654382 525611008 105039 1992294400 134512640 136485738 4290897936 18446744073709551615 135411160 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 128323 105039 155 482 0 127839 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 513292

[startup+51.1019 s]
/proc/loadavg: 1.00 1.00 1.05 2/107 31242
/proc/meminfo: memFree=591132/2059040 swapFree=4140300/4192956
[pid=31239] ppid=31237 vsize=1036224 CPUtime=51.07
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 260883 0 0 0 4989 118 0 0 25 0 1 0 30654382 1061093376 214458 1992294400 134512640 136485738 4290897936 18446744073709551615 135756046 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31239/statm: 259056 214458 155 482 0 258572 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1036224



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+84.709 s]
/proc/loadavg: 1.07 1.02 1.06 2/107 31244
/proc/meminfo: memFree=9544/2059040 swapFree=4140296/4192956
[pid=31239] ppid=31237 vsize=1846848 CPUtime=84.66
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4202496 456019 0 0 0 8259 207 0 0 25 0 1 0 30654382 1891172352 389623 1992294400 134512640 136485738 4290897936 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/31239/statm: 461745 389624 196 482 0 461261 0
Current children cumulated CPU time (s) 84.66
Current children cumulated vsize (KiB) 1846848

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

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

[startup+84.8103 s]
/proc/loadavg: 1.07 1.02 1.06 2/107 31244
/proc/meminfo: memFree=9544/2059040 swapFree=4140296/4192956
[pid=31239] ppid=31237 vsize=0 CPUtime=84.75
/proc/31239/stat : 31239 (pbct) R 31237 31239 30141 0 -1 4194308 456027 0 0 0 8259 216 0 0 25 0 1 0 30654382 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31239/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 84.75
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 84.8744
CPU time (s): 84.8261
CPU user time (s): 82.5974
CPU system time (s): 2.22866
CPU usage (%): 99.9431
Max. virtual memory (cumulated for all children) (KiB): 1846848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 82.5974
system time used= 2.22866
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 456027
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= 1115

runsolver used 0.148977 second user time and 0.422935 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-15 04:47:05
IDJOB=2668573
IDBENCH=2520
IDSOLVER=1170
FILE ID=node027/2668573-1276570006
PBS_JOBID= 11173503
Free space on /tmp= 62248 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-ds.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668573-1276570006/watcher-2668573-1276570006 -o /tmp/evaluation-result-2668573-1276570006/solver-2668573-1276570006 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668573-1276570006.opb

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

MD5SUM BENCH= 7478f253a8ff3e29c2a001743623a20c
RANDOM SEED=1275494179

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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:       1437100 kB
Buffers:         59604 kB
Cached:         470500 kB
SwapCached:       5720 kB
Active:         378424 kB
Inactive:       164320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1437100 kB
SwapTotal:     4192956 kB
SwapFree:      4140300 kB
Dirty:          214284 kB
Writeback:           0 kB
AnonPages:       11160 kB
Mapped:          13128 kB
Slab:            57192 kB
PageTables:       3968 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181712 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62244 MiB
End job on node027 at 2010-06-15 04:48:32