Trace number 2682893

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 fixedOPT9663726592 0.036993 0.0377889

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/www.csit.fsu.edu/
~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
MD5SUM24c749e45d4bbd6a8ec98f3e49fb7aad
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark9663726592
Best CPU time to get the best result obtained on this benchmark0.036993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9663726592
Optimality of the best value was proved YES
Number of variables56
Total number of constraints5
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 constraints5
Minimum length of a constraint12
Maximum length of a constraint44
Number of terms in the objective function 56
Biggest coefficient in the objective function 9663676416
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 19327377394
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 9663676416
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 19327377394
Number of bits of the biggest sum of numbers35
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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
0.00/0.00	c constraints 5/0 clauses 0/0 units 1
0.00/0.00	c vars 56
0.00/0.00	c objective 55 + 9663676416
0.00/0.01	c 0.012998 3.87891 51 572
0.00/0.01	o 9663732657
0.00/0.01	c 0.013997 3.87891 51 593
0.00/0.01	o 9663732610
0.00/0.01	c 0.013997 3.87891 51 615
0.00/0.01	o 9663732485
0.00/0.01	c 0.013997 3.87891 51 637
0.00/0.01	o 9663732354
0.00/0.01	c 0.014997 3.87891 51 653
0.00/0.01	o 9663732351
0.00/0.01	c 0.014997 4.01562 51 668
0.00/0.01	o 9663732347
0.00/0.02	c 0.015997 4.01562 51 682
0.00/0.02	o 9663732345
0.00/0.02	c 0.015997 4.01562 52 701
0.00/0.02	o 9663732313
0.00/0.02	c 0.015997 4.01562 53 721
0.00/0.02	o 9663732213
0.00/0.02	c 0.016997 4.01562 53 733
0.00/0.02	o 9663732208
0.00/0.02	c 0.016997 4.01562 56 752
0.00/0.02	o 9663731452
0.00/0.02	c 0.017997 4.01562 58 766
0.00/0.02	o 9663731444
0.00/0.02	c 0.017997 4.01562 58 775
0.00/0.02	o 9663731440
0.00/0.02	c 0.018997 4.01562 60 793
0.00/0.02	o 9663731421
0.00/0.02	c 0.018997 4.01562 60 808
0.00/0.02	o 9663731408
0.00/0.02	c 0.018997 4.01562 60 817
0.00/0.02	o 9663731404
0.00/0.02	c 0.019996 4.01562 61 830
0.00/0.02	o 9663731392
0.00/0.02	c 0.019996 4.01562 64 850
0.00/0.02	o 9663731380
0.00/0.02	c 0.020996 4.01562 62 867
0.00/0.02	o 9663731252
0.00/0.02	c 0.020996 4.01562 62 875
0.00/0.02	o 9663731248
0.00/0.02	c 0.020996 4.01562 64 892
0.00/0.02	o 9663731200
0.00/0.02	c 0.021996 4.01562 72 929
0.00/0.02	o 9663730180
0.00/0.02	c 0.021996 4.01562 73 950
0.00/0.02	o 9663729924
0.00/0.02	c 0.021996 4.01562 73 964
0.00/0.02	o 9663729908
0.00/0.02	c 0.021996 4.01562 73 973
0.00/0.02	o 9663729904
0.00/0.02	c 0.021996 4.01562 75 990
0.00/0.02	o 9663729872
0.00/0.02	c 0.021996 4.01562 75 998
0.00/0.02	o 9663729868
0.00/0.02	c 0.021996 4.01562 76 1010
0.00/0.02	o 9663729856
0.00/0.03	c 0.022996 4.01562 81 1030
0.00/0.03	o 9663729736
0.00/0.03	c 0.022996 4.01562 82 1042
0.00/0.03	o 9663729712
0.00/0.03	c 0.023996 4.01562 84 1054
0.00/0.03	o 9663729688
0.00/0.03	c 0.023996 4.01562 85 1063
0.00/0.03	o 9663729676
0.00/0.03	c 0.024996 4.01562 86 1075
0.00/0.03	o 9663729664
0.00/0.03	c 0.024996 4.01562 93 1100
0.00/0.03	o 9663726670
0.00/0.03	c 0.024996 4.01562 95 1116
0.00/0.03	o 9663726644
0.00/0.03	c 0.024996 4.01562 95 1126
0.00/0.03	o 9663726640
0.00/0.03	c 0.025996 4.01562 97 1139
0.00/0.03	o 9663726618
0.00/0.03	c 0.025996 4.01562 97 1149
0.00/0.03	o 9663726616
0.00/0.03	c 0.025996 4.01562 98 1161
0.00/0.03	o 9663726592
0.00/0.03	c 0.026995 4.01562 98 1161
0.00/0.03	s OPTIMUM FOUND
0.00/0.03	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 -x51 -x52 -x53 -x54 -x55 x56

Verifier Data 

OK	9663726592

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682893-1277486157/watcher-2682893-1277486157 -o /tmp/evaluation-result-2682893-1277486157/solver-2682893-1277486157 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682893-1277486157.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: 1.03 1.01 0.96 3/106 28364
/proc/meminfo: memFree=1795192/2059040 swapFree=4140024/4192956
[pid=28364] ppid=28362 vsize=3572 CPUtime=0
/proc/28364/stat : 28364 (pbct) R 28362 28364 27682 0 -1 4202496 584 0 0 0 0 0 0 0 25 0 1 0 89909409 3657728 503 1992294400 134512640 136421960 4294066768 18446744073709551615 135812090 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28364/statm: 893 504 195 467 0 424 0

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

Child status: 0
Real time (s): 0.0377889
CPU time (s): 0.036993
CPU user time (s): 0.028995
CPU system time (s): 0.007998
CPU usage (%): 97.8938
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.028995
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 831
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= 1

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node083 at 2010-06-25 19:15:57
IDJOB=2682893
IDBENCH=2375
IDSOLVER=1192
FILE ID=node083/2682893-1277486157
PBS_JOBID= 11190485
Free space on /tmp= 62496 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682893-1277486157/watcher-2682893-1277486157 -o /tmp/evaluation-result-2682893-1277486157/solver-2682893-1277486157 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682893-1277486157.opb

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

MD5SUM BENCH= 24c749e45d4bbd6a8ec98f3e49fb7aad
RANDOM SEED=919628450

node083.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		: 3000.262
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		: 3000.262
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	: 5999.40
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1795720 kB
Buffers:         53768 kB
Cached:         110772 kB
SwapCached:       5404 kB
Active:          16980 kB
Inactive:       160520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1795720 kB
SwapTotal:     4192956 kB
SwapFree:      4140024 kB
Dirty:            2116 kB
Writeback:           0 kB
AnonPages:       11560 kB
Mapped:          12000 kB
Slab:            63608 kB
PageTables:       4096 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181840 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= 62496 MiB
End job on node083 at 2010-06-25 19:15:57