Trace number 2667898

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 0.1OPT2 6.80496 6.80648

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=23-P1=31-P2=23-P3=7-P4=31-P5=19-P6=31-P7=11-P8=2-B.opb
MD5SUMfc4ae85a9713a7cb45bbf0331db309f7
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.530918
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables120
Total number of constraints17
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 constraints17
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)200
Sum of products size (including duplicates)400
Number of different products200
Sum of products size400

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 208/0 clauses 209/0 units 0
0.00/0.00	c vars 120
0.00/0.00	c objective 5 + 0
0.59/0.66	c 0.583911 8.94922 1480 23077
0.59/0.66	o 11
5.40/5.43	c 4.66329 9.23828 2379 182971
5.40/5.43	o 9
6.69/6.78	c 5.82811 9.23828 551 227624
6.69/6.78	o 2
6.69/6.78	c 5.82811 9.23828 551 227624
6.69/6.78	s OPTIMUM FOUND
6.69/6.78	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 x57 -x58 -x59 -x60 -x61 x62 -x63 -x64 x65 -x66 x67 -x68 x69 -x70 -x71 x72 x73 x74 -x75 -x76 x77 x78 x79 x80 -x81 -x82 -x83 -x84 -x85 x86 -x87 x88 -x89 -x90 x91 -x92 -x93 -x94 -x95 x96 -x97 -x98 -x99 -x100 x101 x102 x103 -x104 -x105 -x106 -x107 -x108 x109 -x110 x111 x112 -x113 -x114 -x115 x116 -x117 x118 -x119 x120

Verifier Data 

OK	2

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2667898-1276648141/watcher-2667898-1276648141 -o /tmp/evaluation-result-2667898-1276648141/solver-2667898-1276648141 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2667898-1276648141.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: 1.00 1.00 1.00 3/106 12093
/proc/meminfo: memFree=1792332/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=3252 CPUtime=0
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 507 0 0 0 0 0 0 0 20 0 1 0 6109206 3330048 430 1992294400 134512640 136485738 4291612224 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 813 432 194 482 0 329 0

[startup+0.089276 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 12093
/proc/meminfo: memFree=1792332/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=8772 CPUtime=0.08
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 1886 0 0 0 8 0 0 0 20 0 1 0 6109206 8982528 1809 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2193 1809 226 482 0 1709 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8772

[startup+0.101276 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 12093
/proc/meminfo: memFree=1792332/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=8772 CPUtime=0.09
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 1887 0 0 0 9 0 0 0 20 0 1 0 6109206 8982528 1810 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2193 1810 226 482 0 1709 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8772

[startup+0.30129 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 12093
/proc/meminfo: memFree=1792332/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9028 CPUtime=0.29
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 1944 0 0 0 27 2 0 0 20 0 1 0 6109206 9244672 1867 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2257 1867 227 482 0 1773 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9028

[startup+0.701318 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 12093
/proc/meminfo: memFree=1792332/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9324 CPUtime=0.69
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2007 0 0 0 60 9 0 0 20 0 1 0 6109206 9547776 1929 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2331 1929 245 482 0 1847 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9324

[startup+1.50137 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 12094
/proc/meminfo: memFree=1785256/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9324 CPUtime=1.49
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2007 0 0 0 126 23 0 0 23 0 1 0 6109206 9547776 1929 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2331 1929 245 482 0 1847 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9324

[startup+3.10149 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 12094
/proc/meminfo: memFree=1785132/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9324 CPUtime=3.09
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2012 0 0 0 263 46 0 0 25 0 1 0 6109206 9547776 1934 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2331 1934 245 482 0 1847 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9324

[startup+6.30071 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 12094
/proc/meminfo: memFree=1784884/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9456 CPUtime=6.29
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2055 0 0 0 540 89 0 0 25 0 1 0 6109206 9682944 1976 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2364 1976 245 482 0 1880 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 9456

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

[startup+6.70074 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 12094
/proc/meminfo: memFree=1784884/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=9456 CPUtime=6.69
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2055 0 0 0 575 94 0 0 25 0 1 0 6109206 9682944 1976 1992294400 134512640 136485738 4291612224 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2364 1976 245 482 0 1880 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 9456

[startup+6.80074 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 12094
/proc/meminfo: memFree=1784884/2059040 swapFree=4192956/4192956
[pid=12093] ppid=12091 vsize=8676 CPUtime=6.79
/proc/12093/stat : 12093 (pbct) R 12091 12093 11743 0 -1 4202496 2061 0 0 0 584 95 0 0 25 0 1 0 6109206 8884224 1839 1992294400 134512640 136485738 4291612224 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12093/statm: 2169 1839 249 482 0 1685 0
Current children cumulated CPU time (s) 6.79
Current children cumulated vsize (KiB) 8676

Child status: 0
Real time (s): 6.80648
CPU time (s): 6.80496
CPU user time (s): 5.84711
CPU system time (s): 0.957854
CPU usage (%): 99.9778
Max. virtual memory (cumulated for all children) (KiB): 9456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.84711
system time used= 0.957854
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2062
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= 17

runsolver used 0.015997 second user time and 0.036994 second system time

The end

Launcher Data 

Begin job on node034 at 2010-06-16 02:29:01
IDJOB=2667898
IDBENCH=47981
IDSOLVER=1170
FILE ID=node034/2667898-1276648141
PBS_JOBID= 11172421
Free space on /tmp= 62516 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=23-P1=31-P2=23-P3=7-P4=31-P5=19-P6=31-P7=11-P8=2-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2667898-1276648141/watcher-2667898-1276648141 -o /tmp/evaluation-result-2667898-1276648141/solver-2667898-1276648141 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2667898-1276648141.opb

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

MD5SUM BENCH= fc4ae85a9713a7cb45bbf0331db309f7
RANDOM SEED=124318259

node034.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		: 3000.242
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		: 3000.242
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1792736 kB
Buffers:         30868 kB
Cached:         111952 kB
SwapCached:          0 kB
Active:         116800 kB
Inactive:        85700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1792736 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1900 kB
Writeback:           0 kB
AnonPages:       59632 kB
Mapped:          15428 kB
Slab:            41964 kB
PageTables:       3988 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180620 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= 62512 MiB
End job on node034 at 2010-06-16 02:29:08