Trace number 2681691

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 fixedOPT-12 1.02984 1.02957

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_4.opb
MD5SUM3e57d3cba1755ede057d969ec9fbcff0
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.460929
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint10
Maximum length of a constraint16
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)614
Sum of products size (including duplicates)1228
Number of different products307
Sum of products size614

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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
0.00/0.00	c constraints 357/0 clauses 307/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.11	c 0.109983 12.0859 0 309
0.09/0.11	o 0
0.09/0.12	c 0.113982 12.3711 0 598
0.09/0.12	o -1
0.09/0.12	c 0.117982 12.3711 0 852
0.09/0.12	o -2
0.09/0.12	c 0.120981 12.3711 1 1040
0.09/0.12	o -3
0.19/0.25	c 0.238963 12.3711 1 1988
0.19/0.25	o -12
0.89/0.99	c 0.940856 12.875 2966 7526
0.89/0.99	s OPTIMUM FOUND
0.89/0.99	v -x1 -x2 -x3 -x4 -x5 -x6 x7 -x8 -x9 -x10 x11 -x12 -x13 x14 -x15 -x16 x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 x30 -x31 -x32 x33 -x34 x35 -x36 -x37 x38 -x39 -x40 x41 -x42 x43 -x44 -x45 x46 -x47 x48 -x49 -x50

Verifier Data 

OK	-12

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681691-1277502417/watcher-2681691-1277502417 -o /tmp/evaluation-result-2681691-1277502417/solver-2681691-1277502417 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681691-1277502417.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: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=3180 CPUtime=0
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 483 0 0 0 0 0 0 0 20 0 1 0 91532636 3256320 403 1992294400 134512640 136421960 4291126144 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 795 405 190 467 0 326 0

[startup+0.073563 s]
/proc/loadavg: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=8320 CPUtime=0.06
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 1787 0 0 0 6 0 0 0 20 0 1 0 91532636 8519680 1707 1992294400 134512640 136421960 4291126144 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 2080 1709 194 467 0 1611 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8320

[startup+0.101567 s]
/proc/loadavg: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=11420 CPUtime=0.09
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 2525 0 0 0 9 0 0 0 20 0 1 0 91532636 11694080 2445 1992294400 134512640 136421960 4291126144 18446744073709551615 134910573 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 2855 2445 204 467 0 2386 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11420

[startup+0.300601 s]
/proc/loadavg: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=12664 CPUtime=0.29
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 2842 0 0 0 28 1 0 0 20 0 1 0 91532636 12967936 2757 1992294400 134512640 136421960 4291126144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 3166 2757 237 467 0 2697 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12664

[startup+0.700668 s]
/proc/loadavg: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=13048 CPUtime=0.69
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 2920 0 0 0 65 4 0 0 20 0 1 0 91532636 13361152 2835 1992294400 134512640 136421960 4291126144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 3262 2835 237 467 0 2793 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13048

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

[startup+0.900701 s]
/proc/loadavg: 1.09 1.04 1.00 3/106 29618
/proc/meminfo: memFree=1894880/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=13180 CPUtime=0.89
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 2946 0 0 0 85 4 0 0 21 0 1 0 91532636 13496320 2861 1992294400 134512640 136421960 4291126144 18446744073709551615 134867963 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 3295 2861 237 467 0 2826 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13180

[startup+1.00072 s]
/proc/loadavg: 1.08 1.03 1.00 2/107 29619
/proc/meminfo: memFree=1884580/2059040 swapFree=4139556/4192956
[pid=29618] ppid=29616 vsize=11992 CPUtime=1
/proc/29618/stat : 29618 (pbct) R 29616 29618 28958 0 -1 4202496 2954 0 0 0 95 5 0 0 21 0 1 0 91532636 12279808 2629 1992294400 134512640 136421960 4291126144 18446744073709551615 135801172 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29618/statm: 2998 2629 240 467 0 2529 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 11992

Child status: 0
Real time (s): 1.02957
CPU time (s): 1.02984
CPU user time (s): 0.977851
CPU system time (s): 0.051992
CPU usage (%): 100.027
Max. virtual memory (cumulated for all children) (KiB): 13180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.977851
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2955
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= 2

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node055 at 2010-06-25 23:46:57
IDJOB=2681691
IDBENCH=48180
IDSOLVER=1192
FILE ID=node055/2681691-1277502417
PBS_JOBID= 11190557
Free space on /tmp= 62360 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_4.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681691-1277502417/watcher-2681691-1277502417 -o /tmp/evaluation-result-2681691-1277502417/solver-2681691-1277502417 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681691-1277502417.opb

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

MD5SUM BENCH= 3e57d3cba1755ede057d969ec9fbcff0
RANDOM SEED=1987083444

node055.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1895408 kB
Buffers:         13332 kB
Cached:          64692 kB
SwapCached:       5924 kB
Active:          62888 kB
Inactive:        27728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1895408 kB
SwapTotal:     4192956 kB
SwapFree:      4139556 kB
Dirty:            1896 kB
Writeback:           0 kB
AnonPages:       11348 kB
Mapped:          11828 kB
Slab:            51204 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182444 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= 62360 MiB
End job on node055 at 2010-06-25 23:46:58