Trace number 2668133

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 0.1OPT-12 1.07384 1.07391

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_2.opb
MD5SUM8a07cc5cd91ca4bb254ab7dda2eb6992
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 benchmark0.472927
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 constraint19
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)616
Sum of products size (including duplicates)1232
Number of different products308
Sum of products size616

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
0.00/0.00	c constraints 358/0 clauses 308/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.12	c 0.111982 12.1328 0 313
0.09/0.12	o 0
0.09/0.12	c 0.114982 12.4648 0 552
0.09/0.12	o -1
0.09/0.13	c 0.118981 12.4648 0 947
0.09/0.13	o -2
0.09/0.13	c 0.121981 12.4648 0 1142
0.09/0.13	o -3
0.09/0.14	c 0.124981 12.4648 0 1326
0.09/0.14	o -4
0.09/0.14	c 0.12798 12.4648 0 1505
0.09/0.14	o -5
0.09/0.14	c 0.131979 12.4648 7 1711
0.09/0.14	o -6
0.19/0.27	c 0.255961 12.4648 7 2615
0.19/0.27	o -10
0.29/0.33	c 0.307953 12.4648 27 3057
0.29/0.33	o -11
0.29/0.34	c 0.320951 12.4648 68 3170
0.29/0.34	o -12
0.99/1.03	c 0.987849 12.8477 1565 8253
0.99/1.03	s OPTIMUM FOUND
0.99/1.03	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	-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-2668133-1276664446/watcher-2668133-1276664446 -o /tmp/evaluation-result-2668133-1276664446/solver-2668133-1276664446 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668133-1276664446.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: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=2340 CPUtime=0
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 299 0 0 0 0 0 0 0 20 0 1 0 42046132 2396160 223 1992294400 134512640 136485738 4293719552 18446744073709551615 135468384 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11054/statm: 585 229 164 482 0 101 0

[startup+0.02074 s]
/proc/loadavg: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=4312 CPUtime=0.01
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 773 0 0 0 1 0 0 0 20 0 1 0 42046132 4415488 696 1992294400 134512640 136485738 4293719552 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 1078 696 198 482 0 594 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4312

[startup+0.101757 s]
/proc/loadavg: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=11444 CPUtime=0.09
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 2503 0 0 0 8 1 0 0 20 0 1 0 42046132 11718656 2426 1992294400 134512640 136485738 4293719552 18446744073709551615 134729089 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 2861 2426 210 482 0 2377 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11444

[startup+0.301795 s]
/proc/loadavg: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=12760 CPUtime=0.29
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 2857 0 0 0 27 2 0 0 20 0 1 0 42046132 13066240 2772 1992294400 134512640 136485738 4293719552 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 3190 2772 244 482 0 2706 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12760

[startup+0.701873 s]
/proc/loadavg: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=13024 CPUtime=0.69
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 2924 0 0 0 66 3 0 0 21 0 1 0 42046132 13336576 2837 1992294400 134512640 136485738 4293719552 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 3256 2837 244 482 0 2772 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13024

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

[startup+0.900912 s]
/proc/loadavg: 1.93 1.92 1.66 3/106 11054
/proc/meminfo: memFree=1756688/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=13152 CPUtime=0.89
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 2952 0 0 0 85 4 0 0 21 0 1 0 42046132 13467648 2865 1992294400 134512640 136485738 4293719552 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 3288 2865 244 482 0 2804 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13152

[startup+1.00094 s]
/proc/loadavg: 1.93 1.92 1.66 2/107 11055
/proc/meminfo: memFree=1746140/2059040 swapFree=4136232/4192956
[pid=11054] ppid=11052 vsize=13152 CPUtime=0.99
/proc/11054/stat : 11054 (pbct) R 11052 11054 10610 0 -1 4202496 2954 0 0 0 95 4 0 0 21 0 1 0 42046132 13467648 2867 1992294400 134512640 136485738 4293719552 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/11054/statm: 3288 2867 244 482 0 2804 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 13152

Child status: 0
Real time (s): 1.07391
CPU time (s): 1.07384
CPU user time (s): 1.02384
CPU system time (s): 0.049992
CPU usage (%): 99.9934
Max. virtual memory (cumulated for all children) (KiB): 13152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.02384
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2960
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 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node011 at 2010-06-16 07:00:46
IDJOB=2668133
IDBENCH=48216
IDSOLVER=1170
FILE ID=node011/2668133-1276664446
PBS_JOBID= 11172507
Free space on /tmp= 62360 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668133-1276664446/watcher-2668133-1276664446 -o /tmp/evaluation-result-2668133-1276664446/solver-2668133-1276664446 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668133-1276664446.opb

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

MD5SUM BENCH= 8a07cc5cd91ca4bb254ab7dda2eb6992
RANDOM SEED=1917302960

node011.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1757216 kB
Buffers:        107500 kB
Cached:         113848 kB
SwapCached:      10072 kB
Active:         103472 kB
Inactive:       131184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1757216 kB
SwapTotal:     4192956 kB
SwapFree:      4136232 kB
Dirty:            2204 kB
Writeback:           8 kB
AnonPages:       11728 kB
Mapped:           9292 kB
Slab:            45536 kB
PageTables:       4016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181848 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 node011 at 2010-06-16 07:00:47