Trace number 2668055

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 5.17621 5.17744

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_5.opb
MD5SUMf4c69768619389ba083d2740787a0405
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 benchmark0.945855
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 constraint36
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)1464
Sum of products size (including duplicates)2928
Number of different products1464
Sum of products size2928

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
0.01/0.02	c constraints 1464/0 clauses 1514/0 units 0
0.01/0.02	c vars 50
0.01/0.02	c objective 50 + 0
0.39/0.40	c 0.369943 34.2344 1 1536
0.39/0.40	o 4
0.39/0.42	c 0.39394 34.8125 12 1598
0.39/0.42	o 3
4.99/5.03	c 4.90325 35.1992 13 4319
4.99/5.03	s OPTIMUM FOUND
4.99/5.03	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-2668055-1276655520/watcher-2668055-1276655520 -o /tmp/evaluation-result-2668055-1276655520/solver-2668055-1276655520 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668055-1276655520.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: 1.52 1.18 1.05 3/105 13988
/proc/meminfo: memFree=1782688/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=2208 CPUtime=0
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 267 0 0 0 0 0 0 0 25 0 1 0 6845491 2260992 190 1992294400 134512640 136485738 4286852128 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/13988/statm: 552 190 156 482 0 68 0

[startup+0.014409 s]
/proc/loadavg: 1.52 1.18 1.05 3/105 13988
/proc/meminfo: memFree=1782688/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=2340 CPUtime=0.01
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 310 0 0 0 1 0 0 0 25 0 1 0 6845491 2396160 233 1992294400 134512640 136485738 4286852128 18446744073709551615 134549205 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/13988/statm: 585 234 156 482 0 101 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2340

[startup+0.101408 s]
/proc/loadavg: 1.52 1.18 1.05 3/105 13988
/proc/meminfo: memFree=1782688/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=10756 CPUtime=0.09
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 2361 0 0 0 9 0 0 0 25 0 1 0 6845491 11014144 2284 1992294400 134512640 136485738 4286852128 18446744073709551615 135849314 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 2689 2285 198 482 0 2205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10756

[startup+0.301426 s]
/proc/loadavg: 1.52 1.18 1.05 3/105 13988
/proc/meminfo: memFree=1782688/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=30780 CPUtime=0.29
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 7487 0 0 0 27 2 0 0 25 0 1 0 6845491 31518720 7219 1992294400 134512640 136485738 4286852128 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 7695 7224 210 482 0 7211 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 30780

[startup+0.701465 s]
/proc/loadavg: 1.52 1.18 1.05 3/105 13988
/proc/meminfo: memFree=1782688/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=35644 CPUtime=0.69
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8756 0 0 0 66 3 0 0 25 0 1 0 6845491 36499456 8324 1992294400 134512640 136485738 4286852128 18446744073709551615 135039140 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 8911 8324 243 482 0 8427 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 35644

[startup+1.50054 s]
/proc/loadavg: 1.52 1.18 1.05 2/106 13989
/proc/meminfo: memFree=1750192/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=35644 CPUtime=1.49
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8756 0 0 0 144 5 0 0 25 0 1 0 6845491 36499456 8324 1992294400 134512640 136485738 4286852128 18446744073709551615 135047035 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 8911 8324 243 482 0 8427 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 35644

[startup+3.1007 s]
/proc/loadavg: 1.52 1.18 1.05 2/106 13989
/proc/meminfo: memFree=1749944/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=35908 CPUtime=3.09
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8816 0 0 0 301 8 0 0 25 0 1 0 6845491 36769792 8384 1992294400 134512640 136485738 4286852128 18446744073709551615 135024568 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 8977 8384 243 482 0 8493 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 35908

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

[startup+3.90078 s]
/proc/loadavg: 1.52 1.18 1.05 2/106 13989
/proc/meminfo: memFree=1749696/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=35908 CPUtime=3.89
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8836 0 0 0 379 10 0 0 25 0 1 0 6845491 36769792 8404 1992294400 134512640 136485738 4286852128 18446744073709551615 135040470 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 8977 8404 243 482 0 8493 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 35908

[startup+4.70085 s]
/proc/loadavg: 1.47 1.18 1.05 2/106 13989
/proc/meminfo: memFree=1749572/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=36040 CPUtime=4.69
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8849 0 0 0 457 12 0 0 25 0 1 0 6845491 36904960 8417 1992294400 134512640 136485738 4286852128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 9010 8417 243 482 0 8526 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 36040

[startup+5.10089 s]
/proc/loadavg: 1.47 1.18 1.05 2/106 13989
/proc/meminfo: memFree=1749572/2059040 swapFree=4140808/4192956
[pid=13988] ppid=13986 vsize=33976 CPUtime=5.09
/proc/13988/stat : 13988 (pbct) R 13986 13988 11986 0 -1 4202496 8861 0 0 0 496 13 0 0 25 0 1 0 6845491 34791424 7977 1992294400 134512640 136485738 4286852128 18446744073709551615 135844708 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/13988/statm: 8494 7977 247 482 0 8010 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 33976

Child status: 0
Real time (s): 5.17744
CPU time (s): 5.17621
CPU user time (s): 5.03923
CPU system time (s): 0.136979
CPU usage (%): 99.9764
Max. virtual memory (cumulated for all children) (KiB): 36040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.03923
system time used= 0.136979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8862
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= 12

runsolver used 0.012998 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node089 at 2010-06-16 04:32:00
IDJOB=2668055
IDBENCH=48138
IDSOLVER=1170
FILE ID=node089/2668055-1276655520
PBS_JOBID= 11172414
Free space on /tmp= 62556 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_5.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668055-1276655520/watcher-2668055-1276655520 -o /tmp/evaluation-result-2668055-1276655520/solver-2668055-1276655520 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668055-1276655520.opb

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

MD5SUM BENCH= f4c69768619389ba083d2740787a0405
RANDOM SEED=895843009

node089.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		: 3000.244
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	: 6000.48
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		: 3000.244
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	: 5999.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1783208 kB
Buffers:         77568 kB
Cached:         119036 kB
SwapCached:       6516 kB
Active:          93196 kB
Inactive:       117184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1783208 kB
SwapTotal:     4192956 kB
SwapFree:      4140808 kB
Dirty:            2036 kB
Writeback:           0 kB
AnonPages:       11196 kB
Mapped:          13068 kB
Slab:            43916 kB
PageTables:       3924 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182260 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= 62556 MiB
End job on node089 at 2010-06-16 04:32:05