Trace number 2682941

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) 68.0537 68.3035

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-rd-rplusc-21.opb
MD5SUM7576b3c58d39cddc5f29deda8f59e316
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 benchmark64.0523
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3616
Total number of constraints125707
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)44
Number of constraints which are nor clauses,nor cardinality constraints125663
Minimum length of a constraint5
Maximum length of a constraint189
Number of terms in the objective function 48
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2160590747
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 2962281908055777280
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint 6289973478481187311
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
46.07/46.15	c constraints 125707/0 clauses 0/0 units 675
46.07/46.15	c vars 3616
46.07/46.15	c objective 48 + 0
67.87/68.12	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-2682941-1277488942/watcher-2682941-1277488942 -o /tmp/evaluation-result-2682941-1277488942/solver-2682941-1277488942 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682941-1277488942.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 0.94 3/106 22902
/proc/meminfo: memFree=1655336/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=2268 CPUtime=0
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 285 0 0 0 0 0 0 0 20 0 1 0 122551609 2322432 204 1992294400 134512640 136421960 4293400336 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 567 204 146 467 0 98 0

[startup+0.029799 s]
/proc/loadavg: 1.00 1.00 0.94 3/106 22902
/proc/meminfo: memFree=1655336/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=2664 CPUtime=0.02
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 379 0 0 0 2 0 0 0 20 0 1 0 122551609 2727936 298 1992294400 134512640 136421960 4293400336 18446744073709551615 135818268 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 666 298 146 467 0 197 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2664

[startup+0.101814 s]
/proc/loadavg: 1.00 1.00 0.94 3/106 22902
/proc/meminfo: memFree=1655336/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=3852 CPUtime=0.09
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 698 0 0 0 9 0 0 0 20 0 1 0 122551609 3944448 617 1992294400 134512640 136421960 4293400336 18446744073709551615 135809783 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 963 617 146 467 0 494 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3852

[startup+0.30085 s]
/proc/loadavg: 1.00 1.00 0.94 3/106 22902
/proc/meminfo: memFree=1655336/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=7416 CPUtime=0.29
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 1576 0 0 0 29 0 0 0 20 0 1 0 122551609 7593984 1495 1992294400 134512640 136421960 4293400336 18446744073709551615 135159009 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 1854 1495 146 467 0 1385 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7416

[startup+0.700925 s]
/proc/loadavg: 1.00 1.00 0.94 3/106 22902
/proc/meminfo: memFree=1655336/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=14412 CPUtime=0.69
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 3336 0 0 0 67 2 0 0 20 0 1 0 122551609 14757888 3255 1992294400 134512640 136421960 4293400336 18446744073709551615 135162382 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 3603 3256 146 467 0 3134 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14412

[startup+1.50107 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=1637596/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=28536 CPUtime=1.49
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 6861 0 0 0 146 3 0 0 23 0 1 0 122551609 29220864 6780 1992294400 134512640 136421960 4293400336 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 7134 6780 146 467 0 6665 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28536

[startup+3.10037 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=1616268/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=56784 CPUtime=3.09
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 13924 0 0 0 301 8 0 0 25 0 1 0 122551609 58146816 13843 1992294400 134512640 136421960 4293400336 18446744073709551615 135809572 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 14196 13843 146 467 0 13727 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 56784

[startup+6.30197 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=1560096/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=113544 CPUtime=6.29
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 28080 0 0 0 614 15 0 0 25 0 1 0 122551609 116269056 27999 1992294400 134512640 136421960 4293400336 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 28386 28000 146 467 0 27917 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 113544

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=1444032/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=225740 CPUtime=12.69
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 56177 0 0 0 1239 30 0 0 25 0 1 0 122551609 231157760 56063 1992294400 134512640 136421960 4293400336 18446744073709551615 135153522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 56435 56063 146 467 0 55966 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 225740

[startup+25.5016 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=1211904/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=451320 CPUtime=25.48
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 112587 0 0 0 2486 62 0 0 25 0 1 0 122551609 462151680 112408 1992294400 134512640 136421960 4293400336 18446744073709551615 135809578 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22902/statm: 112830 112409 146 467 0 112361 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 451320

[startup+51.1013 s]
/proc/loadavg: 1.00 1.00 0.94 2/107 22903
/proc/meminfo: memFree=631584/2059040 swapFree=4140004/4192956
[pid=22902] ppid=22900 vsize=1059052 CPUtime=51.06
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 268360 0 0 0 4977 129 0 0 25 0 1 0 122551609 1084469248 263014 1992294400 134512640 136421960 4293400336 18446744073709551615 135301592 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22902/statm: 264763 263015 195 467 0 264294 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 1059052



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+68.1186 s]
/proc/loadavg: 1.16 1.03 0.95 5/107 22905
/proc/meminfo: memFree=10752/2059040 swapFree=4138504/4192956
[pid=22902] ppid=22900 vsize=1843692 CPUtime=67.87
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4202496 480345 0 0 0 6552 235 0 0 25 0 1 0 122551609 1887940608 455595 1992294400 134512640 136421960 4293400336 18446744073709551615 134632331 0 0 4096 16387 0 0 0 17 1 0 0 19
/proc/22902/statm: 460923 455595 195 467 0 460454 0
Current children cumulated CPU time (s) 67.87
Current children cumulated vsize (KiB) 1843692

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

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

[startup+68.2099 s]
/proc/loadavg: 1.16 1.03 0.95 2/108 22906
/proc/meminfo: memFree=980176/2059040 swapFree=4138504/4192956
[pid=22902] ppid=22900 vsize=0 CPUtime=67.96
/proc/22902/stat : 22902 (pbct) R 22900 22902 21868 0 -1 4194308 480349 0 0 0 6552 244 0 0 25 0 1 0 122551609 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 19
/proc/22902/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 67.96
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 68.3035
CPU time (s): 68.0537
CPU user time (s): 65.528
CPU system time (s): 2.52562
CPU usage (%): 99.6342
Max. virtual memory (cumulated for all children) (KiB): 1843692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 65.528
system time used= 2.52562
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480349
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= 3
involuntary context switches= 606

runsolver used 0.119981 second user time and 0.338948 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-25 20:02:33
IDJOB=2682941
IDBENCH=2515
IDSOLVER=1192
FILE ID=node019/2682941-1277488942
PBS_JOBID= 11190518
Free space on /tmp= 62092 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-rd-rplusc-21.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682941-1277488942/watcher-2682941-1277488942 -o /tmp/evaluation-result-2682941-1277488942/solver-2682941-1277488942 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682941-1277488942.opb

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

MD5SUM BENCH= 7576b3c58d39cddc5f29deda8f59e316
RANDOM SEED=2075929158

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1655616 kB
Buffers:         35236 kB
Cached:         277992 kB
SwapCached:       5532 kB
Active:         245056 kB
Inactive:        81224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1655616 kB
SwapTotal:     4192956 kB
SwapFree:      4140004 kB
Dirty:          185440 kB
Writeback:           0 kB
AnonPages:       11660 kB
Mapped:          11944 kB
Slab:            54916 kB
PageTables:       4152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181936 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= 62092 MiB
End job on node019 at 2010-06-25 20:03:43