Trace number 2668036

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 0.1OPT3 6.29504 6.29694

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_1.opb
MD5SUM3c8b2b83a32c4c8e761f030b6789f3c6
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark1.09483
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
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 constraint26
Maximum length of a constraint38
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)1498
Sum of products size (including duplicates)2996
Number of different products1498
Sum of products size2996

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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.03	c constraints 1498/0 clauses 1548/0 units 0
0.00/0.03	c vars 50
0.00/0.03	c objective 50 + 0
0.39/0.44	c 0.394939 34.9062 1 1546
0.39/0.44	o 4
0.39/0.49	c 0.441932 35.4961 26 1605
0.39/0.49	o 3
6.09/6.15	c 5.97509 36.2695 26 5446
6.09/6.15	s OPTIMUM FOUND
6.09/6.15	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	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668036-1276653186/watcher-2668036-1276653186 -o /tmp/evaluation-result-2668036-1276653186/solver-2668036-1276653186 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668036-1276653186.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: 1.71 1.93 1.69 3/106 12944
/proc/meminfo: memFree=1833700/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=2208 CPUtime=0
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 263 0 0 0 0 0 0 0 25 0 1 0 6610069 2260992 186 1992294400 134512640 136485738 4287320624 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12944/statm: 552 187 156 482 0 68 0

[startup+0.093852 s]
/proc/loadavg: 1.71 1.93 1.69 3/106 12944
/proc/meminfo: memFree=1833700/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=9732 CPUtime=0.09
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 2102 0 0 0 8 1 0 0 25 0 1 0 6610069 9965568 2025 1992294400 134512640 136485738 4287320624 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 2433 2025 198 482 0 1949 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9732

[startup+0.101851 s]
/proc/loadavg: 1.71 1.93 1.69 3/106 12944
/proc/meminfo: memFree=1833700/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=10128 CPUtime=0.09
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 2227 0 0 0 8 1 0 0 25 0 1 0 6610069 10371072 2150 1992294400 134512640 136485738 4287320624 18446744073709551615 134542052 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 2532 2151 198 482 0 2048 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10128

[startup+0.300869 s]
/proc/loadavg: 1.71 1.93 1.69 3/106 12944
/proc/meminfo: memFree=1833700/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=26604 CPUtime=0.29
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 6462 0 0 0 26 3 0 0 25 0 1 0 6610069 27242496 6242 1992294400 134512640 136485738 4287320624 18446744073709551615 134650997 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 6651 6242 199 482 0 6167 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 26604

[startup+0.700906 s]
/proc/loadavg: 1.71 1.93 1.69 3/106 12944
/proc/meminfo: memFree=1833700/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=36344 CPUtime=0.69
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 8934 0 0 0 64 5 0 0 25 0 1 0 6610069 37216256 8495 1992294400 134512640 136485738 4287320624 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9086 8495 244 482 0 8602 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36344

[startup+1.50198 s]
/proc/loadavg: 1.71 1.93 1.69 2/107 12945
/proc/meminfo: memFree=1800460/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=36344 CPUtime=1.49
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 8948 0 0 0 142 7 0 0 25 0 1 0 6610069 37216256 8509 1992294400 134512640 136485738 4287320624 18446744073709551615 134880498 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9086 8509 244 482 0 8602 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 36344

[startup+3.10112 s]
/proc/loadavg: 1.71 1.93 1.69 2/107 12945
/proc/meminfo: memFree=1800212/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=36740 CPUtime=3.09
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9036 0 0 0 298 11 0 0 25 0 1 0 6610069 37621760 8597 1992294400 134512640 136485738 4287320624 18446744073709551615 135024897 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9185 8597 244 482 0 8701 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 36740

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

[startup+4.70127 s]
/proc/loadavg: 1.65 1.92 1.69 2/107 12945
/proc/meminfo: memFree=1799716/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=37004 CPUtime=4.69
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9102 0 0 0 456 13 0 0 25 0 1 0 6610069 37892096 8663 1992294400 134512640 136485738 4287320624 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9251 8663 244 482 0 8767 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 37004

[startup+5.50834 s]
/proc/loadavg: 1.65 1.92 1.69 2/107 12945
/proc/meminfo: memFree=1799592/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=37004 CPUtime=5.5
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9122 0 0 0 535 15 0 0 25 0 1 0 6610069 37892096 8683 1992294400 134512640 136485738 4287320624 18446744073709551615 134638729 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9251 8683 244 482 0 8767 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 37004

[startup+5.90137 s]
/proc/loadavg: 1.65 1.92 1.69 2/107 12945
/proc/meminfo: memFree=1799592/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=37136 CPUtime=5.89
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9132 0 0 0 573 16 0 0 25 0 1 0 6610069 38027264 8693 1992294400 134512640 136485738 4287320624 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9284 8693 244 482 0 8800 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 37136

[startup+6.10139 s]
/proc/loadavg: 1.65 1.92 1.69 2/107 12945
/proc/meminfo: memFree=1799592/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=37136 CPUtime=6.09
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9136 0 0 0 593 16 0 0 25 0 1 0 6610069 38027264 8697 1992294400 134512640 136485738 4287320624 18446744073709551615 134660778 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 9284 8697 244 482 0 8800 0
Current children cumulated CPU time (s) 6.09
Current children cumulated vsize (KiB) 37136

[startup+6.2014 s]
/proc/loadavg: 1.65 1.92 1.69 2/107 12945
/proc/meminfo: memFree=1799592/2059040 swapFree=4164932/4192956
[pid=12944] ppid=12942 vsize=34292 CPUtime=6.19
/proc/12944/stat : 12944 (pbct) R 12942 12944 11823 0 -1 4202496 9141 0 0 0 602 17 0 0 25 0 1 0 6610069 35115008 8073 1992294400 134512640 136485738 4287320624 18446744073709551615 134720173 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12944/statm: 8573 8073 248 482 0 8089 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 34292

Child status: 0
Real time (s): 6.29694
CPU time (s): 6.29504
CPU user time (s): 6.11707
CPU system time (s): 0.177972
CPU usage (%): 99.9699
Max. virtual memory (cumulated for all children) (KiB): 37136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.11707
system time used= 0.177972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9142
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= 2
involuntary context switches= 12

runsolver used 0.012998 second user time and 0.034994 second system time

The end

Launcher Data 

Begin job on node051 at 2010-06-16 03:53:06
IDJOB=2668036
IDBENCH=48119
IDSOLVER=1170
FILE ID=node051/2668036-1276653186
PBS_JOBID= 11172445
Free space on /tmp= 62564 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668036-1276653186/watcher-2668036-1276653186 -o /tmp/evaluation-result-2668036-1276653186/solver-2668036-1276653186 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668036-1276653186.opb

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

MD5SUM BENCH= 3c8b2b83a32c4c8e761f030b6789f3c6
RANDOM SEED=1483158542

node051.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		: 3000.255
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		: 3000.255
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	: 5599.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1834228 kB
Buffers:         29312 kB
Cached:          98196 kB
SwapCached:       1380 kB
Active:          86428 kB
Inactive:        73968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1834228 kB
SwapTotal:     4192956 kB
SwapFree:      4164932 kB
Dirty:            2268 kB
Writeback:           0 kB
AnonPages:       31512 kB
Mapped:          14976 kB
Slab:            42724 kB
PageTables:       3932 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182324 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= 62560 MiB
End job on node051 at 2010-06-16 03:53:12