Trace number 2681714

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-6 2.45662 2.45634

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_25_2.opb
MD5SUMb479d3e6e7c019e1b676c88c15e75cf5
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-6
Best CPU time to get the best result obtained on this benchmark0.048992
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -6
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 constraint25
Maximum length of a constraint39
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)1480
Sum of products size (including duplicates)2960
Number of different products740
Sum of products size1480

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
0.00/0.01	c constraints 790/0 clauses 740/0 units 0
0.00/0.01	c vars 50
0.00/0.01	c objective 50 + -50
0.19/0.27	c 0.255961 24.0703 0 741
0.19/0.27	o 0
0.19/0.28	c 0.26296 24.4688 0 1308
0.19/0.28	o -1
0.19/0.29	c 0.273958 24.4688 0 1788
0.19/0.29	o -2
0.29/0.34	c 0.32295 24.4688 0 4068
0.29/0.34	o -3
1.49/1.51	c 1.47078 24.4688 1 9239
1.49/1.51	o -5
1.99/2.01	c 1.9657 24.4688 49 9826
1.99/2.01	o -6
2.29/2.35	c 2.30065 24.4688 664 10605
2.29/2.36	s OPTIMUM FOUND
2.29/2.36	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	-6

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681714-1277502707/watcher-2681714-1277502707 -o /tmp/evaluation-result-2681714-1277502707/solver-2681714-1277502707 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681714-1277502707.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: 0.92 0.98 0.99 3/106 23352
/proc/meminfo: memFree=1838392/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=2268 CPUtime=0
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 295 0 0 0 0 0 0 0 18 0 1 0 125872425 2322432 215 1992294400 134512640 136421960 4289256112 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23352/statm: 567 216 146 467 0 98 0

[startup+0.040696 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23352
/proc/meminfo: memFree=1838392/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=5952 CPUtime=0.03
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 1173 0 0 0 3 0 0 0 20 0 1 0 125872425 6094848 1093 1992294400 134512640 136421960 4289256112 18446744073709551615 136044366 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 1487 1093 194 467 0 1018 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5952

[startup+0.100703 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23352
/proc/meminfo: memFree=1838392/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=10112 CPUtime=0.09
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 2197 0 0 0 9 0 0 0 20 0 1 0 125872425 10354688 2117 1992294400 134512640 136421960 4289256112 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 2528 2118 194 467 0 2059 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10112

[startup+0.300725 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23352
/proc/meminfo: memFree=1838392/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=25052 CPUtime=0.29
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5980 0 0 0 27 2 0 0 20 0 1 0 125872425 25653248 5717 1992294400 134512640 136421960 4289256112 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 6263 5717 237 467 0 5794 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 25052

[startup+0.700769 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23352
/proc/meminfo: memFree=1838392/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=25052 CPUtime=0.69
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5981 0 0 0 65 4 0 0 20 0 1 0 125872425 25653248 5717 1992294400 134512640 136421960 4289256112 18446744073709551615 135020636 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 6263 5717 237 467 0 5794 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 25052

[startup+1.50086 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23353
/proc/meminfo: memFree=1816312/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=25052 CPUtime=1.49
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5981 0 0 0 145 4 0 0 23 0 1 0 125872425 25653248 5717 1992294400 134512640 136421960 4289256112 18446744073709551615 135027980 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 6263 5717 237 467 0 5794 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25052

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

[startup+1.9009 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23353
/proc/meminfo: memFree=1816312/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=25052 CPUtime=1.89
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5982 0 0 0 185 4 0 0 25 0 1 0 125872425 25653248 5717 1992294400 134512640 136421960 4289256112 18446744073709551615 135025736 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 6263 5717 237 467 0 5794 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 25052

[startup+2.30095 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23353
/proc/meminfo: memFree=1816064/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=25052 CPUtime=2.29
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5983 0 0 0 224 5 0 0 25 0 1 0 125872425 25653248 5717 1992294400 134512640 136421960 4289256112 18446744073709551615 135028958 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 6263 5717 237 467 0 5794 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 25052

[startup+2.40096 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23353
/proc/meminfo: memFree=1816064/2059040 swapFree=4139100/4192956
[pid=23352] ppid=23350 vsize=23296 CPUtime=2.39
/proc/23352/stat : 23352 (pbct) R 23350 23352 22777 0 -1 4202496 5987 0 0 0 234 5 0 0 25 0 1 0 125872425 23855104 5385 1992294400 134512640 136421960 4289256112 18446744073709551615 134701458 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23352/statm: 5824 5385 240 467 0 5355 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 23296

Child status: 0
Real time (s): 2.45634
CPU time (s): 2.45662
CPU user time (s): 2.39564
CPU system time (s): 0.06099
CPU usage (%): 100.012
Max. virtual memory (cumulated for all children) (KiB): 25052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.39563
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5988
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= 6

runsolver used 0.007998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-25 23:51:47
IDJOB=2681714
IDBENCH=48203
IDSOLVER=1192
FILE ID=node009/2681714-1277502707
PBS_JOBID= 11190571
Free space on /tmp= 62400 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_25_2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681714-1277502707/watcher-2681714-1277502707 -o /tmp/evaluation-result-2681714-1277502707/solver-2681714-1277502707 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681714-1277502707.opb

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

MD5SUM BENCH= b479d3e6e7c019e1b676c88c15e75cf5
RANDOM SEED=442926405

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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:       1838920 kB
Buffers:         34440 kB
Cached:          88080 kB
SwapCached:       6040 kB
Active:          61800 kB
Inactive:        73368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1838920 kB
SwapTotal:     4192956 kB
SwapFree:      4139100 kB
Dirty:            1884 kB
Writeback:           0 kB
AnonPages:       11408 kB
Mapped:          11816 kB
Slab:            62816 kB
PageTables:       4192 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182052 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 node009 at 2010-06-25 23:51:49