Trace number 2668359

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 0.1UNSAT 1.25981 1.26099

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-adlittle.opb
MD5SUM952cd1c498d347dda37d376c7740481e
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
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables2910
Total number of constraints56
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 constraints56
Minimum length of a constraint30
Maximum length of a constraint810
Number of terms in the objective function 2460
Biggest coefficient in the objective function 88852135936000
Number of bits for the biggest coefficient in the objective function 47
Sum of the numbers in the objective function 3689448844530141
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 359703511040000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 6054438712178314
Number of bits of the biggest sum of numbers53
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
0.02/0.05	c constraints 56/0 clauses 0/0 units 1021
0.02/0.05	c vars 2910
0.02/0.06	c objective 1904 + -975626669777600
0.89/0.96	c 0.875866 67.7969 0 0
1.19/1.25	s UNSATISFIABLE

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-2668359-1276556049/watcher-2668359-1276556049 -o /tmp/evaluation-result-2668359-1276556049/solver-2668359-1276556049 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668359-1276556049.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: 1.94 2.02 1.71 3/106 710
/proc/meminfo: memFree=1869036/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=2208 CPUtime=0
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 261 0 0 0 0 0 0 0 20 0 1 0 31206527 2260992 183 1992294400 134512640 136485738 4289003712 18446744073709551615 135848165 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/710/statm: 552 183 151 482 0 68 0

[startup+0.024943 s]
/proc/loadavg: 1.94 2.02 1.71 3/106 710
/proc/meminfo: memFree=1869036/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=2620 CPUtime=0.02
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 373 0 0 0 2 0 0 0 20 0 1 0 31206527 2682880 295 1992294400 134512640 136485738 4289003712 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/710/statm: 655 295 157 482 0 171 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2620

[startup+0.101962 s]
/proc/loadavg: 1.94 2.02 1.71 3/106 710
/proc/meminfo: memFree=1869036/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=8444 CPUtime=0.09
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 1801 0 0 0 9 0 0 0 20 0 1 0 31206527 8646656 1723 1992294400 134512640 136485738 4289003712 18446744073709551615 134719589 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/710/statm: 2111 1723 197 482 0 1627 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8444

[startup+0.301004 s]
/proc/loadavg: 1.94 2.02 1.71 3/106 710
/proc/meminfo: memFree=1869036/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=24644 CPUtime=0.29
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 5860 0 0 0 27 2 0 0 20 0 1 0 31206527 25235456 5716 1992294400 134512640 136485738 4289003712 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/710/statm: 6161 5716 197 482 0 5677 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 24644

[startup+0.701089 s]
/proc/loadavg: 1.94 2.02 1.71 3/106 710
/proc/meminfo: memFree=1869036/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=53608 CPUtime=0.69
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 13564 0 0 0 63 6 0 0 21 0 1 0 31206527 54894592 12950 1992294400 134512640 136485738 4289003712 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/710/statm: 13402 12954 199 482 0 12918 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 53608

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

[startup+1.10818 s]
/proc/loadavg: 1.94 2.02 1.71 2/107 711
/proc/meminfo: memFree=1803928/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=65840 CPUtime=1.1
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 17578 0 0 0 102 8 0 0 22 0 1 0 31206527 67420160 15848 1992294400 134512640 136485738 4289003712 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/710/statm: 16460 15848 246 482 0 15976 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 65840

[startup+1.20119 s]
/proc/loadavg: 1.94 2.02 1.71 2/107 711
/proc/meminfo: memFree=1803928/2059040 swapFree=4140216/4192956
[pid=710] ppid=708 vsize=65840 CPUtime=1.19
/proc/710/stat : 710 (pbct) R 708 710 32745 0 -1 4202496 17578 0 0 0 111 8 0 0 22 0 1 0 31206527 67420160 15848 1992294400 134512640 136485738 4289003712 18446744073709551615 135839862 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/710/statm: 16460 15848 246 482 0 15976 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 65840

Child status: 0
Real time (s): 1.26099
CPU time (s): 1.25981
CPU user time (s): 1.16782
CPU system time (s): 0.091986
CPU usage (%): 99.9063
Max. virtual memory (cumulated for all children) (KiB): 67128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.16782
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17579
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= 18

runsolver used 0.005999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-15 00:54:09
IDJOB=2668359
IDBENCH=2454
IDSOLVER=1170
FILE ID=node010/2668359-1276556049
PBS_JOBID= 11173492
Free space on /tmp= 62500 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-adlittle.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668359-1276556049/watcher-2668359-1276556049 -o /tmp/evaluation-result-2668359-1276556049/solver-2668359-1276556049 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668359-1276556049.opb

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

MD5SUM BENCH= 952cd1c498d347dda37d376c7740481e
RANDOM SEED=1579328348

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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:       1869440 kB
Buffers:         23788 kB
Cached:          89368 kB
SwapCached:       5988 kB
Active:          80196 kB
Inactive:        45640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1869440 kB
SwapTotal:     4192956 kB
SwapFree:      4140216 kB
Dirty:            2204 kB
Writeback:           0 kB
AnonPages:       10896 kB
Mapped:          12956 kB
Slab:            41860 kB
PageTables:       3924 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182176 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= 62496 MiB
End job on node010 at 2010-06-15 00:54:10