Trace number 2682921

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) 41.5897 41.5989

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-woodw.opb
MD5SUM39878dc7ef96e07e426f9432943c6054
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 benchmark20.9618
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables252150
Total number of constraints1098
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 constraints1098
Minimum length of a constraint30
Maximum length of a constraint43590
Number of terms in the objective function 120
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 4294967292
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 10737418240000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 556588032595749
Number of bits of the biggest sum of numbers49
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
13.20/13.23	c constraints 1098/0 clauses 0/0 units 30908
13.20/13.23	c vars 252150
13.20/13.23	c objective 120 + 0
41.40/41.42	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-2682921-1277487234/watcher-2682921-1277487234 -o /tmp/evaluation-result-2682921-1277487234/solver-2682921-1277487234 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682921-1277487234.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 0.99 3/106 25140
/proc/meminfo: memFree=1782080/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=2424 CPUtime=0
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 297 0 0 0 0 0 0 0 23 0 1 0 122378927 2482176 217 1992294400 134512640 136421960 4290807216 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 606 217 140 467 0 137 0

[startup+0.071235 s]
/proc/loadavg: 1.00 1.00 0.99 3/106 25140
/proc/meminfo: memFree=1782080/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=3680 CPUtime=0.06
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 605 0 0 0 6 0 0 0 23 0 1 0 122378927 3768320 525 1992294400 134512640 136421960 4290807216 18446744073709551615 135809939 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 920 525 145 467 0 451 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3680

[startup+0.101237 s]
/proc/loadavg: 1.00 1.00 0.99 3/106 25140
/proc/meminfo: memFree=1782080/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=4356 CPUtime=0.09
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 754 0 0 0 9 0 0 0 23 0 1 0 122378927 4460544 674 1992294400 134512640 136421960 4290807216 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 1089 674 145 467 0 620 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4356

[startup+0.301253 s]
/proc/loadavg: 1.00 1.00 0.99 3/106 25140
/proc/meminfo: memFree=1782080/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=8576 CPUtime=0.29
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 1768 0 0 0 28 1 0 0 23 0 1 0 122378927 8781824 1655 1992294400 134512640 136421960 4290807216 18446744073709551615 135159019 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 2144 1655 145 467 0 1675 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8576

[startup+0.701285 s]
/proc/loadavg: 1.00 1.00 0.99 3/106 25140
/proc/meminfo: memFree=1782080/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=17380 CPUtime=0.69
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 3806 0 0 0 67 2 0 0 25 0 1 0 122378927 17797120 3693 1992294400 134512640 136421960 4290807216 18446744073709551615 135160411 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 4345 3693 145 467 0 3876 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17380

[startup+1.50135 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=1761736/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=34580 CPUtime=1.49
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 7802 0 0 0 145 4 0 0 25 0 1 0 122378927 35409920 7689 1992294400 134512640 136421960 4290807216 18446744073709551615 135153517 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 8645 7689 145 467 0 8176 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 34580

[startup+3.10048 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=1738796/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=68936 CPUtime=3.09
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 15967 0 0 0 303 6 0 0 25 0 1 0 122378927 70590464 15514 1992294400 134512640 136421960 4290807216 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 17234 15514 146 467 0 16765 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 68936

[startup+6.30073 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=1703580/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=88852 CPUtime=6.29
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 20551 0 0 0 620 9 0 0 25 0 1 0 122378927 90984448 19582 1992294400 134512640 136421960 4290807216 18446744073709551615 135161856 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 22213 19582 147 467 0 21744 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 88852

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=1703704/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=88852 CPUtime=12.69
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 20551 0 0 0 1260 9 0 0 25 0 1 0 122378927 90984448 19582 1992294400 134512640 136421960 4290807216 18446744073709551615 134539385 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25140/statm: 22213 19582 147 467 0 21744 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 88852

[startup+25.5013 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=923868/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=888016 CPUtime=25.48
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 233586 0 0 0 2452 96 0 0 25 0 1 0 122378927 909328384 218864 1992294400 134512640 136421960 4290807216 18446744073709551615 134574800 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25140/statm: 222004 218864 195 467 0 221535 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 888016



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+41.4015 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=9468/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=1847208 CPUtime=41.4
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4202496 490848 0 0 0 3933 207 0 0 25 0 1 0 122378927 1891540992 444578 1992294400 134512640 136421960 4290807216 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25140/statm: 461802 444579 195 467 0 461333 0
Current children cumulated CPU time (s) 41.4
Current children cumulated vsize (KiB) 1847208

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

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

[startup+41.5205 s]
/proc/loadavg: 1.00 1.00 0.99 2/107 25141
/proc/meminfo: memFree=9468/2059040 swapFree=4136400/4192956
[pid=25140] ppid=25138 vsize=0 CPUtime=41.5
/proc/25140/stat : 25140 (pbct) R 25138 25140 24277 0 -1 4194308 490856 0 0 0 3933 217 0 0 25 0 1 0 122378927 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/25140/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 41.5
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 41.5989
CPU time (s): 41.5897
CPU user time (s): 39.339
CPU system time (s): 2.25066
CPU usage (%): 99.9777
Max. virtual memory (cumulated for all children) (KiB): 1847208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 39.339
system time used= 2.25066
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490856
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= 30

runsolver used 0.083987 second user time and 0.19497 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-25 19:33:55
IDJOB=2682921
IDBENCH=2439
IDSOLVER=1192
FILE ID=node026/2682921-1277487234
PBS_JOBID= 11190516
Free space on /tmp= 62460 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-woodw.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682921-1277487234/watcher-2682921-1277487234 -o /tmp/evaluation-result-2682921-1277487234/solver-2682921-1277487234 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682921-1277487234.opb

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

MD5SUM BENCH= 39878dc7ef96e07e426f9432943c6054
RANDOM SEED=519552608

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1782600 kB
Buffers:         46904 kB
Cached:         130236 kB
SwapCached:       9016 kB
Active:          87160 kB
Inactive:       103148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1782600 kB
SwapTotal:     4192956 kB
SwapFree:      4136400 kB
Dirty:           20168 kB
Writeback:           0 kB
AnonPages:       11760 kB
Mapped:           8384 kB
Slab:            64172 kB
PageTables:       4176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182024 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= 62456 MiB
End job on node026 at 2010-06-25 19:34:39