Trace number 2682940

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) 61.7696 63.9903

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-momentum2.opb
MD5SUM0d80b4a073c50ac034a87a4950dc06d8
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 benchmark27.2938
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables25930
Total number of constraints22668
Number of constraints which are clauses10362
Number of constraints which are cardinality constraints (but not clauses)103
Number of constraints which are nor clauses,nor cardinality constraints12203
Minimum length of a constraint1
Maximum length of a constraint913
Number of terms in the objective function 24130
Biggest coefficient in the objective function 655360000
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 3638660312
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 1024000000000000000000000000000
Number of bits of the biggest number in a constraint 100
Biggest sum of numbers in a constraint 3743132712137090008913823010064
Number of bits of the biggest sum of numbers102
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
25.09/25.14	c constraints 10828/0 clauses 1500/0 units 2559
25.09/25.14	c vars 25930
25.09/25.17	c objective 23331 + -19107840

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-2682940-1277488678/watcher-2682940-1277488678 -o /tmp/evaluation-result-2682940-1277488678/solver-2682940-1277488678 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682940-1277488678.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: 0.93 0.98 0.99 3/106 24507
/proc/meminfo: memFree=1739120/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=2416 CPUtime=0
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 296 0 0 0 0 0 0 0 15 0 1 0 124469838 2473984 216 1992294400 134512640 136421960 4288994912 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 604 217 135 467 0 135 0

[startup+0.0935139 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 24507
/proc/meminfo: memFree=1739120/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=4008 CPUtime=0.08
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 811 0 0 0 8 0 0 0 17 0 1 0 124469838 4104192 584 1992294400 134512640 136421960 4288994912 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 1002 584 146 467 0 533 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4008

[startup+0.100515 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 24507
/proc/meminfo: memFree=1739120/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=4140 CPUtime=0.09
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 840 0 0 0 9 0 0 0 17 0 1 0 124469838 4239360 613 1992294400 134512640 136421960 4288994912 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 1035 613 146 467 0 566 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4140

[startup+0.300541 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 24507
/proc/meminfo: memFree=1739120/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=7572 CPUtime=0.29
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 1691 0 0 0 29 0 0 0 17 0 1 0 124469838 7753728 1464 1992294400 134512640 136421960 4288994912 18446744073709551615 134555081 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 1893 1465 146 467 0 1424 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7572

[startup+0.700593 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 24507
/proc/meminfo: memFree=1739120/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=13524 CPUtime=0.69
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 3160 0 0 0 68 1 0 0 17 0 1 0 124469838 13848576 2933 1992294400 134512640 136421960 4288994912 18446744073709551615 135717562 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 3381 2933 146 467 0 2912 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13524

[startup+1.5007 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 24508
/proc/meminfo: memFree=1726588/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=19024 CPUtime=1.49
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 4560 0 0 0 147 2 0 0 18 0 1 0 124469838 19480576 4333 1992294400 134512640 136421960 4288994912 18446744073709551615 134537336 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 4756 4333 146 467 0 4287 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19024

[startup+3.10091 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 24508
/proc/meminfo: memFree=1719024/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=24620 CPUtime=3.09
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 5962 0 0 0 306 3 0 0 21 0 1 0 124469838 25210880 5735 1992294400 134512640 136421960 4288994912 18446744073709551615 135820751 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 6155 5735 146 467 0 5686 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24620

[startup+6.30133 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 24508
/proc/meminfo: memFree=1707616/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=38836 CPUtime=6.29
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 9495 0 0 0 625 4 0 0 25 0 1 0 124469838 39768064 9268 1992294400 134512640 136421960 4288994912 18446744073709551615 135161817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 9709 9268 146 467 0 9240 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 38836

[startup+12.7012 s]
/proc/loadavg: 0.94 0.98 0.99 2/107 24510
/proc/meminfo: memFree=1672400/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=72044 CPUtime=12.69
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 17796 0 0 0 1260 9 0 0 25 0 1 0 124469838 73773056 17569 1992294400 134512640 136421960 4288994912 18446744073709551615 135161800 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24507/statm: 18011 17569 146 467 0 17542 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 72044

[startup+25.5008 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 24510
/proc/meminfo: memFree=1609532/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=160248 CPUtime=25.48
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 39852 0 0 0 2529 19 0 0 25 0 1 0 124469838 164093952 39625 1992294400 134512640 136421960 4288994912 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24507/statm: 40062 39627 195 467 0 39593 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 160248

[startup+51.1002 s]
/proc/loadavg: 0.97 0.98 0.99 2/107 24510
/proc/meminfo: memFree=407104/2059040 swapFree=4139492/4192956
[pid=24507] ppid=24505 vsize=1377208 CPUtime=51.07
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 369428 0 0 0 4944 163 0 0 25 0 1 0 124469838 1410260992 338985 1992294400 134512640 136421960 4288994912 18446744073709551615 135364031 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24507/statm: 344302 338986 195 467 0 343833 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1377208



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+61.8006 s]
/proc/loadavg: 0.97 0.98 0.99 2/107 24510
/proc/meminfo: memFree=10480/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=1844016 CPUtime=61.58
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4202496 495262 0 0 0 5941 217 0 0 25 0 1 0 124469838 1888272384 446124 1992294400 134512640 136421960 4288994912 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 20
/proc/24507/statm: 461004 446124 195 467 0 460535 0
Current children cumulated CPU time (s) 61.58
Current children cumulated vsize (KiB) 1844016

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -24507

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

[startup+62.2007 s]
/proc/loadavg: 0.97 0.98 0.99 2/107 24510
/proc/meminfo: memFree=10480/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=1844016 CPUtime=61.58
/proc/24507/stat : 24507 (pbct) S 24505 24507 23632 0 -1 4194304 495266 0 0 0 5941 217 0 0 25 0 1 0 124469838 1888272384 446128 1992294400 134512640 136421960 4288994912 18446744073709551615 135884462 0 16384 4096 16387 18446604437878272960 0 0 17 1 0 0 20
/proc/24507/statm: 461004 446128 196 467 0 460535 0
Current children cumulated CPU time (s) 61.58
Current children cumulated vsize (KiB) 1844016

[startup+63.0008 s]
/proc/loadavg: 0.97 0.98 0.99 1/108 24511
/proc/meminfo: memFree=10224/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=1844016 CPUtime=61.58
/proc/24507/stat : 24507 (pbct) S 24505 24507 23632 0 -1 4194304 495266 0 0 0 5941 217 0 0 25 0 1 0 124469838 1888272384 446128 1992294400 134512640 136421960 4288994912 18446744073709551615 135884462 0 16384 4096 16387 18446604437878272960 0 0 17 1 0 0 20
/proc/24507/statm: 461004 446128 196 467 0 460535 0
Current children cumulated CPU time (s) 61.58
Current children cumulated vsize (KiB) 1844016

[startup+63.4008 s]
/proc/loadavg: 0.97 0.98 0.99 1/108 24511
/proc/meminfo: memFree=10224/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=1844016 CPUtime=61.58
/proc/24507/stat : 24507 (pbct) S 24505 24507 23632 0 -1 4194304 495266 0 0 0 5941 217 0 0 25 0 1 0 124469838 1888272384 446128 1992294400 134512640 136421960 4288994912 18446744073709551615 135884462 0 16384 4096 16387 18446604437878272960 0 0 17 1 0 0 20
/proc/24507/statm: 461004 446128 196 467 0 460535 0
Current children cumulated CPU time (s) 61.58
Current children cumulated vsize (KiB) 1844016

[startup+63.8089 s]
/proc/loadavg: 0.97 0.98 0.99 1/108 24511
/proc/meminfo: memFree=10224/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=1844016 CPUtime=61.58
/proc/24507/stat : 24507 (pbct) S 24505 24507 23632 0 -1 4194304 495266 0 0 0 5941 217 0 0 25 0 1 0 124469838 1888272384 446128 1992294400 134512640 136421960 4288994912 18446744073709551615 135884462 0 16384 4096 16387 18446604437878272960 0 0 17 1 0 0 20
/proc/24507/statm: 461004 446128 196 467 0 460535 0
Current children cumulated CPU time (s) 61.58
Current children cumulated vsize (KiB) 1844016

[startup+63.9009 s]
/proc/loadavg: 0.97 0.98 0.99 1/108 24511
/proc/meminfo: memFree=10224/2059040 swapFree=4139488/4192956
[pid=24507] ppid=24505 vsize=0 CPUtime=61.67
/proc/24507/stat : 24507 (pbct) R 24505 24507 23632 0 -1 4195332 495266 0 0 0 5941 226 0 0 18 0 1 0 124469838 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 20
/proc/24507/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 61.67
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 63.9903
CPU time (s): 61.7696
CPU user time (s): 59.417
CPU system time (s): 2.35264
CPU usage (%): 96.5296
Max. virtual memory (cumulated for all children) (KiB): 1844016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.417
system time used= 2.35264
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 495266
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= 5
involuntary context switches= 99

runsolver used 0.107983 second user time and 0.321951 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-25 19:58:03
IDJOB=2682940
IDBENCH=2497
IDSOLVER=1192
FILE ID=node013/2682940-1277488678
PBS_JOBID= 11190523
Free space on /tmp= 62340 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-momentum2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682940-1277488678/watcher-2682940-1277488678 -o /tmp/evaluation-result-2682940-1277488678/solver-2682940-1277488678 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682940-1277488678.opb

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

MD5SUM BENCH= 0d80b4a073c50ac034a87a4950dc06d8
RANDOM SEED=1521260515

node013.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		: 3000.253
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	: 6000.50
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		: 3000.253
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:       1739392 kB
Buffers:         54308 kB
Cached:         162460 kB
SwapCached:       5972 kB
Active:         135396 kB
Inactive:        94912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1739392 kB
SwapTotal:     4192956 kB
SwapFree:      4139492 kB
Dirty:           67344 kB
Writeback:           0 kB
AnonPages:       12156 kB
Mapped:          11792 kB
Slab:            66996 kB
PageTables:       4152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182324 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= 62336 MiB
End job on node013 at 2010-06-25 19:59:07