Trace number 2682904

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) 45.4721 47.4844

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-pilot87.opb
MD5SUM5945633e92159be43fdff7baf2926f79
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 benchmark8.75167
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables113861
Total number of constraints3582
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 constraints3582
Minimum length of a constraint10
Maximum length of a constraint8647
Number of terms in the objective function 11587
Biggest coefficient in the objective function 1769666112389120
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 73168715037279064
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 536870912000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 1323519003456940521
Number of bits of the biggest sum of numbers61
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
14.58/14.64	c constraints 3537/0 clauses 0/0 units 8255
14.58/14.64	c vars 113861
14.58/14.69	c objective 10888 + -67279084431355

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-2682904-1277486568/watcher-2682904-1277486568 -o /tmp/evaluation-result-2682904-1277486568/solver-2682904-1277486568 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682904-1277486568.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 29687
/proc/meminfo: memFree=1856512/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=2416 CPUtime=0
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 291 0 0 0 0 0 0 0 20 0 1 0 89949273 2473984 211 1992294400 134512640 136421960 4294180432 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 604 211 138 467 0 135 0

[startup+0.0139301 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29687
/proc/meminfo: memFree=1856512/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=2680 CPUtime=0.01
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 343 0 0 0 1 0 0 0 20 0 1 0 89949273 2744320 263 1992294400 134512640 136421960 4294180432 18446744073709551615 135380484 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 670 263 138 467 0 201 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2680

[startup+0.101937 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29687
/proc/meminfo: memFree=1856512/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=4192 CPUtime=0.09
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 763 0 0 0 9 0 0 0 20 0 1 0 89949273 4292608 650 1992294400 134512640 136421960 4294180432 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 1048 650 146 467 0 579 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4192

[startup+0.300957 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29687
/proc/meminfo: memFree=1856512/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=7776 CPUtime=0.29
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 1645 0 0 0 29 0 0 0 20 0 1 0 89949273 7962624 1532 1992294400 134512640 136421960 4294180432 18446744073709551615 135160324 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 1944 1532 146 467 0 1475 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7776

[startup+0.700998 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29687
/proc/meminfo: memFree=1856512/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=15444 CPUtime=0.69
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 3256 0 0 0 68 1 0 0 21 0 1 0 89949273 15814656 3143 1992294400 134512640 136421960 4294180432 18446744073709551615 135162306 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 3861 3143 146 467 0 3392 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15444

[startup+1.50108 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29688
/proc/meminfo: memFree=1838400/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=30308 CPUtime=1.49
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 6658 0 0 0 146 3 0 0 23 0 1 0 89949273 31035392 6545 1992294400 134512640 136421960 4294180432 18446744073709551615 135160374 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 7577 6545 146 467 0 7108 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 30308

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29688
/proc/meminfo: memFree=1820048/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=58724 CPUtime=3.09
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 13188 0 0 0 302 7 0 0 25 0 1 0 89949273 60133376 13075 1992294400 134512640 136421960 4294180432 18446744073709551615 134537336 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 14681 13075 146 467 0 14212 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 58724

[startup+6.30157 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29688
/proc/meminfo: memFree=1795868/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=68776 CPUtime=6.29
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 15526 0 0 0 621 8 0 0 25 0 1 0 89949273 70426624 15413 1992294400 134512640 136421960 4294180432 18446744073709551615 135154801 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 17194 15413 146 467 0 16725 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 68776

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29688
/proc/meminfo: memFree=1793140/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=82228 CPUtime=12.69
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 18559 0 0 0 1259 10 0 0 25 0 1 0 89949273 84201472 18446 1992294400 134512640 136421960 4294180432 18446744073709551615 135372660 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29687/statm: 20557 18446 146 467 0 20088 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 82228

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29690
/proc/meminfo: memFree=1051000/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=826772 CPUtime=25.48
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 216115 0 0 0 2454 94 0 0 25 0 1 0 89949273 846614528 202770 1992294400 134512640 136421960 4294180432 18446744073709551615 134784071 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29687/statm: 206693 202770 195 467 0 206224 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 826772



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+45.3005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29690
/proc/meminfo: memFree=87024/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=1843816 CPUtime=45.29
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4202496 490401 0 0 0 4323 206 0 0 25 0 1 0 89949273 1888067584 441717 1992294400 134512640 136421960 4294180432 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29687/statm: 460954 441717 195 467 0 460485 0
Current children cumulated CPU time (s) 45.29
Current children cumulated vsize (KiB) 1843816

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -29687

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

[startup+46.2086 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 29691
/proc/meminfo: memFree=86644/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=1843816 CPUtime=45.29
/proc/29687/stat : 29687 (pbct) S 29685 29687 28704 0 -1 4194304 490405 0 0 0 4323 206 0 0 25 0 1 0 89949273 1888067584 441721 1992294400 134512640 136421960 4294180432 18446744073709551615 135884462 0 16384 4096 16387 18446604437846712512 0 0 17 1 0 0 0
/proc/29687/statm: 460954 441721 196 467 0 460485 0
Current children cumulated CPU time (s) 45.29
Current children cumulated vsize (KiB) 1843816

[startup+47.0007 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 29691
/proc/meminfo: memFree=86644/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=1843816 CPUtime=45.29
/proc/29687/stat : 29687 (pbct) S 29685 29687 28704 0 -1 4194304 490405 0 0 0 4323 206 0 0 25 0 1 0 89949273 1888067584 441721 1992294400 134512640 136421960 4294180432 18446744073709551615 135884462 0 16384 4096 16387 18446604437846712512 0 0 17 1 0 0 0
/proc/29687/statm: 460954 441721 196 467 0 460485 0
Current children cumulated CPU time (s) 45.29
Current children cumulated vsize (KiB) 1843816

[startup+47.4007 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 29691
/proc/meminfo: memFree=86644/2059040 swapFree=4139516/4192956
[pid=29687] ppid=29685 vsize=0 CPUtime=45.38
/proc/29687/stat : 29687 (pbct) R 29685 29687 28704 0 -1 4195332 490405 0 0 0 4323 215 0 0 18 0 1 0 89949273 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29687/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 45.38
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 47.4844
CPU time (s): 45.4721
CPU user time (s): 43.2344
CPU system time (s): 2.23766
CPU usage (%): 95.7622
Max. virtual memory (cumulated for all children) (KiB): 1843816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.2344
system time used= 2.23766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490405
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= 2
involuntary context switches= 137

runsolver used 0.079987 second user time and 0.240963 second system time

The end

Launcher Data 

Begin job on node045 at 2010-06-25 19:22:51
IDJOB=2682904
IDBENCH=2398
IDSOLVER=1192
FILE ID=node045/2682904-1277486568
PBS_JOBID= 11190500
Free space on /tmp= 62484 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-pilot87.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682904-1277486568/watcher-2682904-1277486568 -o /tmp/evaluation-result-2682904-1277486568/solver-2682904-1277486568 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682904-1277486568.opb

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

MD5SUM BENCH= 5945633e92159be43fdff7baf2926f79
RANDOM SEED=2123425185

node045.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		: 3000.247
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	: 6000.49
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		: 3000.247
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:       1857040 kB
Buffers:          8752 kB
Cached:          96572 kB
SwapCached:       5824 kB
Active:          52476 kB
Inactive:        65352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1857040 kB
SwapTotal:     4192956 kB
SwapFree:      4139516 kB
Dirty:           26332 kB
Writeback:           0 kB
AnonPages:       11392 kB
Mapped:          11892 kB
Slab:            62112 kB
PageTables:       4140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182404 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= 62484 MiB
End job on node045 at 2010-06-25 19:23:38