Trace number 2681686

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 1.02484 1.02482

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_1.opb
MD5SUM85943b997cdad21dc5e2becf1aafbf8b
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 benchmark0.507922
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 constraint18
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)610
Sum of products size (including duplicates)1220
Number of different products305
Sum of products size610

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 355/0 clauses 305/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.11	c 0.104984 12.0391 0 310
0.09/0.11	o 0
0.09/0.11	c 0.107983 12.3203 0 579
0.09/0.11	o -1
0.09/0.12	c 0.110983 12.3203 1 843
0.09/0.12	o -2
0.19/0.25	c 0.241963 12.3203 1 1871
0.19/0.25	o -11
0.19/0.27	c 0.255961 12.3203 26 1975
0.19/0.27	o -12
0.89/0.98	c 0.945856 12.8242 1 7261
0.89/0.98	s OPTIMUM FOUND
0.89/0.98	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-2681686-1277502301/watcher-2681686-1277502301 -o /tmp/evaluation-result-2681686-1277502301/solver-2681686-1277502301 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681686-1277502301.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 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=3180 CPUtime=0
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 486 0 0 0 0 0 0 0 17 0 1 0 125831574 3256320 406 1992294400 134512640 136421960 4291829344 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 795 408 190 467 0 326 0

[startup+0.054416 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=7020 CPUtime=0.04
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 1431 0 0 0 4 0 0 0 17 0 1 0 125831574 7188480 1351 1992294400 134512640 136421960 4291829344 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 1755 1353 194 467 0 1286 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7020

[startup+0.101421 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=11528 CPUtime=0.09
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 2526 0 0 0 9 0 0 0 17 0 1 0 125831574 11804672 2446 1992294400 134512640 136421960 4291829344 18446744073709551615 134921344 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 2882 2446 204 467 0 2413 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11528

[startup+0.301447 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=12612 CPUtime=0.29
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 2829 0 0 0 28 1 0 0 17 0 1 0 125831574 12914688 2744 1992294400 134512640 136421960 4291829344 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 3153 2744 237 467 0 2684 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12612

[startup+0.7015 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=13000 CPUtime=0.69
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 2911 0 0 0 66 3 0 0 17 0 1 0 125831574 13312000 2826 1992294400 134512640 136421960 4291829344 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 3250 2826 237 467 0 2781 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13000

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

[startup+0.901528 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25245
/proc/meminfo: memFree=1853200/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=13128 CPUtime=0.89
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 2935 0 0 0 86 3 0 0 17 0 1 0 125831574 13443072 2850 1992294400 134512640 136421960 4291829344 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 3282 2850 237 467 0 2813 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13128

[startup+1.00154 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 25246
/proc/meminfo: memFree=1843024/2059040 swapFree=4139488/4192956
[pid=25245] ppid=25243 vsize=11680 CPUtime=1
/proc/25245/stat : 25245 (pbct) R 25243 25245 24621 0 -1 4202496 2941 0 0 0 96 4 0 0 18 0 1 0 125831574 11960320 2600 1992294400 134512640 136421960 4291829344 18446744073709551615 135806084 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25245/statm: 2920 2600 240 467 0 2451 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 11680

Child status: 0
Real time (s): 1.02482
CPU time (s): 1.02484
CPU user time (s): 0.98185
CPU system time (s): 0.042993
CPU usage (%): 100.002
Max. virtual memory (cumulated for all children) (KiB): 13128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.98185
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2942
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= 3

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-25 23:45:01
IDJOB=2681686
IDBENCH=48175
IDSOLVER=1192
FILE ID=node013/2681686-1277502301
PBS_JOBID= 11190560
Free space on /tmp= 62404 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681686-1277502301/watcher-2681686-1277502301 -o /tmp/evaluation-result-2681686-1277502301/solver-2681686-1277502301 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681686-1277502301.opb

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

MD5SUM BENCH= 85943b997cdad21dc5e2becf1aafbf8b
RANDOM SEED=859353557

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:       1853852 kB
Buffers:         30716 kB
Cached:          76200 kB
SwapCached:       5728 kB
Active:          68436 kB
Inactive:        51756 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1853852 kB
SwapTotal:     4192956 kB
SwapFree:      4139488 kB
Dirty:            1876 kB
Writeback:           0 kB
AnonPages:       12116 kB
Mapped:          11944 kB
Slab:            62984 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182364 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= 62400 MiB
End job on node013 at 2010-06-25 23:45:02