Trace number 2668082

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-13 1.05584 1.05649

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_3.opb
MD5SUM59a1ef6e3ce4cf2364efcc21910181d3
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-13
Best CPU time to get the best result obtained on this benchmark0.372943
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -13
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 constraint17
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)618
Sum of products size (including duplicates)1236
Number of different products309
Sum of products size618

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 359/0 clauses 309/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.12	c 0.114982 12.1484 0 312
0.09/0.12	o 0
0.09/0.13	c 0.118981 12.4883 0 579
0.09/0.13	o -1
0.09/0.13	c 0.120981 12.4883 0 774
0.09/0.13	o -2
0.09/0.13	c 0.123981 12.4883 0 956
0.09/0.13	o -3
0.09/0.13	c 0.12598 12.4883 0 1117
0.09/0.13	o -4
0.09/0.14	c 0.12998 12.4883 3 1273
0.09/0.14	o -5
0.19/0.28	c 0.263959 12.4883 3 2275
0.19/0.28	o -9
0.19/0.29	c 0.278957 12.4883 3 2394
0.19/0.29	o -10
0.29/0.34	c 0.32395 12.4883 60 2743
0.29/0.34	o -11
0.39/0.43	c 0.416936 12.4883 644 3521
0.39/0.43	o -12
0.69/0.78	c 0.753885 12.8633 2986 5996
0.69/0.78	o -13
1.00/1.01	c 0.98185 12.9883 2659 7579
1.00/1.01	s OPTIMUM FOUND
1.00/1.01	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	-13

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668082-1276658649/watcher-2668082-1276658649 -o /tmp/evaluation-result-2668082-1276658649/solver-2668082-1276658649 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668082-1276658649.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: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=2340 CPUtime=0
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 297 0 0 0 0 0 0 0 25 0 1 0 41468613 2396160 220 1992294400 134512640 136485738 4294007904 18446744073709551615 135912375 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8345/statm: 585 220 157 482 0 101 0

[startup+0.0150179 s]
/proc/loadavg: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=3784 CPUtime=0.01
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 644 0 0 0 1 0 0 0 25 0 1 0 41468613 3874816 567 1992294400 134512640 136485738 4294007904 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 946 569 194 482 0 462 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3784

[startup+0.101027 s]
/proc/loadavg: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=11464 CPUtime=0.09
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 2508 0 0 0 9 0 0 0 25 0 1 0 41468613 11739136 2431 1992294400 134512640 136485738 4294007904 18446744073709551615 134949538 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 2866 2431 210 482 0 2382 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11464

[startup+0.30105 s]
/proc/loadavg: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=12784 CPUtime=0.29
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 2864 0 0 0 28 1 0 0 25 0 1 0 41468613 13090816 2779 1992294400 134512640 136485738 4294007904 18446744073709551615 135039346 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 3196 2779 244 482 0 2712 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12784

[startup+0.701096 s]
/proc/loadavg: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=13040 CPUtime=0.69
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 2930 0 0 0 67 2 0 0 25 0 1 0 41468613 13352960 2843 1992294400 134512640 136485738 4294007904 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 3260 2843 244 482 0 2776 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13040

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

[startup+0.901119 s]
/proc/loadavg: 1.17 1.03 1.01 3/106 8345
/proc/meminfo: memFree=1625736/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=13296 CPUtime=0.89
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 2967 0 0 0 86 3 0 0 25 0 1 0 41468613 13615104 2879 1992294400 134512640 136485738 4294007904 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 3324 2879 244 482 0 2840 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13296

[startup+1.00113 s]
/proc/loadavg: 1.17 1.03 1.01 2/107 8346
/proc/meminfo: memFree=1615064/2059040 swapFree=4140048/4192956
[pid=8345] ppid=8343 vsize=13296 CPUtime=1
/proc/8345/stat : 8345 (pbct) R 8343 8345 8148 0 -1 4202496 2968 0 0 0 97 3 0 0 25 0 1 0 41468613 13615104 2880 1992294400 134512640 136485738 4294007904 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8345/statm: 3324 2880 244 482 0 2840 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 13296

Child status: 0
Real time (s): 1.05649
CPU time (s): 1.05584
CPU user time (s): 1.01884
CPU system time (s): 0.036994
CPU usage (%): 99.9379
Max. virtual memory (cumulated for all children) (KiB): 13296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01885
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2974
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 0.003999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-16 05:24:09
IDJOB=2668082
IDBENCH=48165
IDSOLVER=1170
FILE ID=node006/2668082-1276658649
PBS_JOBID= 11172491
Free space on /tmp= 62504 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668082-1276658649/watcher-2668082-1276658649 -o /tmp/evaluation-result-2668082-1276658649/solver-2668082-1276658649 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668082-1276658649.opb

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

MD5SUM BENCH= 59a1ef6e3ce4cf2364efcc21910181d3
RANDOM SEED=575860358

node006.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		: 3000.204
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	: 6000.40
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		: 3000.204
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:       1626140 kB
Buffers:        144840 kB
Cached:         202676 kB
SwapCached:       6988 kB
Active:         133816 kB
Inactive:       228104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1626140 kB
SwapTotal:     4192956 kB
SwapFree:      4140048 kB
Dirty:            2252 kB
Writeback:           0 kB
AnonPages:       12452 kB
Mapped:          13128 kB
Slab:            49268 kB
PageTables:       4076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182856 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= 62500 MiB
End job on node006 at 2010-06-16 05:24:11