Trace number 2682550

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 NameAnswerCPU timeWall clock time
PB/CT 0.1 fixedUNSAT 96.2834 96.3156

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900575442.opb
MD5SUM3135d58f22cd009942de3e1dff086931
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark29.4245
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 667
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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
0.00/0.03	c constraints 23/0 clauses 2684/0 units 0
0.00/0.03	c vars 231
96.16/96.28	c 86.7078 12.043 518 598142
96.26/96.31	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682550-1277475687/watcher-2682550-1277475687 -o /tmp/evaluation-result-2682550-1277475687/solver-2682550-1277475687 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682550-1277475687.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: 0.51 0.15 0.05 3/106 25320
/proc/meminfo: memFree=1787752/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=2136 CPUtime=0
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 246 0 0 0 0 0 0 0 20 0 1 0 123170260 2187264 165 1992294400 134512640 136421960 4291754448 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25320/statm: 534 165 144 467 0 65 0

[startup+0.0758381 s]
/proc/loadavg: 0.51 0.15 0.05 3/106 25320
/proc/meminfo: memFree=1787752/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=9516 CPUtime=0.06
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2042 0 0 0 6 0 0 0 20 0 1 0 123170260 9744384 1961 1992294400 134512640 136421960 4291754448 18446744073709551615 135801357 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2379 1965 195 467 0 1910 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 9516

[startup+0.100842 s]
/proc/loadavg: 0.51 0.15 0.05 3/106 25320
/proc/meminfo: memFree=1787752/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10100 CPUtime=0.09
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2177 0 0 0 9 0 0 0 20 0 1 0 123170260 10342400 2094 1992294400 134512640 136421960 4291754448 18446744073709551615 135028852 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2525 2094 213 467 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10100

[startup+0.300878 s]
/proc/loadavg: 0.51 0.15 0.05 3/106 25320
/proc/meminfo: memFree=1787752/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10360 CPUtime=0.29
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2230 0 0 0 25 4 0 0 20 0 1 0 123170260 10608640 2147 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2590 2147 213 467 0 2121 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10360

[startup+0.700949 s]
/proc/loadavg: 0.51 0.15 0.05 3/106 25320
/proc/meminfo: memFree=1787752/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10492 CPUtime=0.69
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2270 0 0 0 59 10 0 0 20 0 1 0 123170260 10743808 2187 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2623 2187 213 467 0 2154 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10492

[startup+1.50109 s]
/proc/loadavg: 0.51 0.15 0.05 2/107 25321
/proc/meminfo: memFree=1779684/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10492 CPUtime=1.49
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2293 0 0 0 130 19 0 0 22 0 1 0 123170260 10743808 2210 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2623 2210 213 467 0 2154 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10492

[startup+3.10038 s]
/proc/loadavg: 0.51 0.15 0.05 2/107 25321
/proc/meminfo: memFree=1779312/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10752 CPUtime=3.09
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2328 0 0 0 271 38 0 0 25 0 1 0 123170260 11010048 2245 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2688 2245 213 467 0 2219 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10752

[startup+6.30095 s]
/proc/loadavg: 0.55 0.16 0.05 2/107 25321
/proc/meminfo: memFree=1778940/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=10884 CPUtime=6.29
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2373 0 0 0 556 73 0 0 25 0 1 0 123170260 11145216 2290 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2721 2290 213 467 0 2252 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10884

[startup+12.7011 s]
/proc/loadavg: 0.58 0.17 0.06 2/107 25321
/proc/meminfo: memFree=1778568/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=11144 CPUtime=12.68
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2425 0 0 0 1126 142 0 0 25 0 1 0 123170260 11411456 2342 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2786 2342 213 467 0 2317 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 11144

[startup+25.5014 s]
/proc/loadavg: 0.67 0.21 0.07 2/107 25321
/proc/meminfo: memFree=1778196/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=11536 CPUtime=25.49
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2537 0 0 0 2283 266 0 0 25 0 1 0 123170260 11812864 2454 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2884 2454 213 467 0 2415 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 11536

[startup+51.101 s]
/proc/loadavg: 0.78 0.28 0.10 2/107 25323
/proc/meminfo: memFree=1777948/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=11932 CPUtime=51.07
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2635 0 0 0 4572 535 0 0 25 0 1 0 123170260 12218368 2552 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2983 2552 213 467 0 2514 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 11932

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

[startup+76.7015 s]
/proc/loadavg: 0.86 0.33 0.12 2/107 25323
/proc/meminfo: memFree=1777576/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12196 CPUtime=76.66
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2699 0 0 0 6891 775 0 0 25 0 1 0 123170260 12488704 2616 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3049 2616 213 467 0 2580 0
Current children cumulated CPU time (s) 76.66
Current children cumulated vsize (KiB) 12196

[startup+89.5008 s]
/proc/loadavg: 0.88 0.36 0.13 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12196 CPUtime=89.47
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2715 0 0 0 8047 900 0 0 25 0 1 0 123170260 12488704 2632 1992294400 134512640 136421960 4291754448 18446744073709551615 134861916 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3049 2632 213 467 0 2580 0
Current children cumulated CPU time (s) 89.47
Current children cumulated vsize (KiB) 12196

[startup+92.7014 s]
/proc/loadavg: 0.89 0.37 0.13 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12196 CPUtime=92.66
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2718 0 0 0 8341 925 0 0 25 0 1 0 123170260 12488704 2635 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3049 2635 213 467 0 2580 0
Current children cumulated CPU time (s) 92.66
Current children cumulated vsize (KiB) 12196

[startup+94.3007 s]
/proc/loadavg: 0.89 0.37 0.13 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12328 CPUtime=94.26
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2720 0 0 0 8488 938 0 0 25 0 1 0 123170260 12623872 2637 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3082 2637 213 467 0 2613 0
Current children cumulated CPU time (s) 94.26
Current children cumulated vsize (KiB) 12328

[startup+95.1008 s]
/proc/loadavg: 0.89 0.37 0.13 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12328 CPUtime=95.06
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2722 0 0 0 8562 944 0 0 25 0 1 0 123170260 12623872 2639 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3082 2639 213 467 0 2613 0
Current children cumulated CPU time (s) 95.06
Current children cumulated vsize (KiB) 12328

[startup+95.901 s]
/proc/loadavg: 0.90 0.38 0.14 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=12328 CPUtime=95.86
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2722 0 0 0 8635 951 0 0 25 0 1 0 123170260 12623872 2639 1992294400 134512640 136421960 4291754448 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 3082 2639 213 467 0 2613 0
Current children cumulated CPU time (s) 95.86
Current children cumulated vsize (KiB) 12328

[startup+96.301 s]
/proc/loadavg: 0.90 0.38 0.14 2/107 25323
/proc/meminfo: memFree=1777328/2059040 swapFree=4136480/4192956
[pid=25320] ppid=25318 vsize=9700 CPUtime=96.26
/proc/25320/stat : 25320 (pbct) R 25318 25320 25212 0 -1 4202496 2747 0 0 0 8672 954 0 0 25 0 1 0 123170260 9932800 2114 1992294400 134512640 136421960 4291754448 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25320/statm: 2425 2114 237 467 0 1956 0
Current children cumulated CPU time (s) 96.26
Current children cumulated vsize (KiB) 9700

Child status: 0
Real time (s): 96.3156
CPU time (s): 96.2834
CPU user time (s): 86.7328
CPU system time (s): 9.55055
CPU usage (%): 99.9665
Max. virtual memory (cumulated for all children) (KiB): 12328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.7328
system time used= 9.55055
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2748
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= 114

runsolver used 0.151976 second user time and 0.469928 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-25 16:21:27
IDJOB=2682550
IDBENCH=1294
IDSOLVER=1192
FILE ID=node012/2682550-1277475687
PBS_JOBID= 11190524
Free space on /tmp= 62428 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900575442.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682550-1277475687/watcher-2682550-1277475687 -o /tmp/evaluation-result-2682550-1277475687/solver-2682550-1277475687 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682550-1277475687.opb

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

MD5SUM BENCH= 3135d58f22cd009942de3e1dff086931
RANDOM SEED=356900913

node012.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		: 3000.258
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	: 6000.51
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		: 3000.258
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:       1788280 kB
Buffers:         45364 kB
Cached:         125296 kB
SwapCached:       9008 kB
Active:          70412 kB
Inactive:       113200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1788280 kB
SwapTotal:     4192956 kB
SwapFree:      4136480 kB
Dirty:            2012 kB
Writeback:           0 kB
AnonPages:       11544 kB
Mapped:           8388 kB
Slab:            65324 kB
PageTables:       4212 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182724 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= 62428 MiB
End job on node012 at 2010-06-25 16:23:03