Trace number 2682616

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 86.7268 86.7551

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900564281.opb
MD5SUM0626939ca6144a564c8e59fb048e3266
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 benchmark10.0725
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 705
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
86.66/86.72	c 77.7202 11.7852 1105 564844
86.66/86.75	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-2682616-1277476029/watcher-2682616-1277476029 -o /tmp/evaluation-result-2682616-1277476029/solver-2682616-1277476029 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682616-1277476029.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: 0.99 0.72 0.33 3/106 21924
/proc/meminfo: memFree=1823904/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=2136 CPUtime=0
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 246 0 0 0 0 0 0 0 20 0 1 0 123204629 2187264 165 1992294400 134512640 136421960 4289168224 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21924/statm: 534 165 144 467 0 65 0

[startup+0.082952 s]
/proc/loadavg: 0.99 0.72 0.33 3/106 21924
/proc/meminfo: memFree=1823904/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=9840 CPUtime=0.07
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2120 0 0 0 7 0 0 0 20 0 1 0 123204629 10076160 2037 1992294400 134512640 136421960 4289168224 18446744073709551615 135829913 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2460 2037 203 467 0 1991 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 9840

[startup+0.100984 s]
/proc/loadavg: 0.99 0.72 0.33 3/106 21924
/proc/meminfo: memFree=1823904/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10100 CPUtime=0.09
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2171 0 0 0 9 0 0 0 20 0 1 0 123204629 10342400 2088 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2525 2088 213 467 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10100

[startup+0.300988 s]
/proc/loadavg: 0.99 0.72 0.33 3/106 21924
/proc/meminfo: memFree=1823904/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10232 CPUtime=0.29
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2207 0 0 0 25 4 0 0 20 0 1 0 123204629 10477568 2124 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2558 2124 213 467 0 2089 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10232

[startup+0.70102 s]
/proc/loadavg: 0.99 0.72 0.33 3/106 21924
/proc/meminfo: memFree=1823904/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10360 CPUtime=0.69
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2247 0 0 0 60 9 0 0 20 0 1 0 123204629 10608640 2164 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2590 2164 213 467 0 2121 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10360

[startup+1.50111 s]
/proc/loadavg: 0.99 0.73 0.33 3/107 21925
/proc/meminfo: memFree=1815960/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10488 CPUtime=1.49
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2283 0 0 0 129 20 0 0 22 0 1 0 123204629 10739712 2200 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2622 2200 213 467 0 2153 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10488

[startup+3.10128 s]
/proc/loadavg: 0.99 0.73 0.33 2/107 21927
/proc/meminfo: memFree=1815464/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10748 CPUtime=3.09
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2330 0 0 0 270 39 0 0 25 0 1 0 123204629 11005952 2247 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2687 2247 213 467 0 2218 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10748

[startup+6.30064 s]
/proc/loadavg: 0.99 0.73 0.33 2/107 21927
/proc/meminfo: memFree=1815216/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=10880 CPUtime=6.29
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2372 0 0 0 556 73 0 0 25 0 1 0 123204629 11141120 2289 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2720 2289 213 467 0 2251 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10880

[startup+12.7013 s]
/proc/loadavg: 0.99 0.74 0.34 2/107 21927
/proc/meminfo: memFree=1814720/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=11144 CPUtime=12.69
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2445 0 0 0 1125 144 0 0 25 0 1 0 123204629 11411456 2362 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2786 2362 213 467 0 2317 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11144

[startup+25.5008 s]
/proc/loadavg: 1.07 0.76 0.35 2/107 21927
/proc/meminfo: memFree=1814472/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=11540 CPUtime=25.48
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2535 0 0 0 2275 273 0 0 25 0 1 0 123204629 11816960 2452 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2885 2452 213 467 0 2416 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11540

[startup+51.1006 s]
/proc/loadavg: 1.05 0.78 0.37 2/107 21927
/proc/meminfo: memFree=1814100/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=11936 CPUtime=51.07
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2626 0 0 0 4568 539 0 0 25 0 1 0 123204629 12222464 2543 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 2984 2543 213 467 0 2515 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 11936

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

[startup+63.901 s]
/proc/loadavg: 1.04 0.79 0.38 2/107 21927
/proc/meminfo: memFree=1813852/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=63.87
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2676 0 0 0 5725 662 0 0 25 0 1 0 123204629 12353536 2593 1992294400 134512640 136421960 4289168224 18446744073709551615 134863939 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2593 213 467 0 2547 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 12064

[startup+76.7004 s]
/proc/loadavg: 1.03 0.79 0.38 2/107 21927
/proc/meminfo: memFree=1813852/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=76.67
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 6880 787 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 76.67
Current children cumulated vsize (KiB) 12064

[startup+83.1001 s]
/proc/loadavg: 1.10 0.82 0.39 2/107 21929
/proc/meminfo: memFree=1813604/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=83.06
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 7452 854 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 83.06
Current children cumulated vsize (KiB) 12064

[startup+84.7083 s]
/proc/loadavg: 1.10 0.82 0.39 2/107 21929
/proc/meminfo: memFree=1813604/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=84.67
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 7594 873 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 84.67
Current children cumulated vsize (KiB) 12064

[startup+85.5014 s]
/proc/loadavg: 1.10 0.82 0.39 2/107 21929
/proc/meminfo: memFree=1813604/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=85.47
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 7664 883 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 85.47
Current children cumulated vsize (KiB) 12064

[startup+86.3015 s]
/proc/loadavg: 1.10 0.82 0.39 2/107 21929
/proc/meminfo: memFree=1813604/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=86.27
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 7734 893 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 86.27
Current children cumulated vsize (KiB) 12064

[startup+86.7015 s]
/proc/loadavg: 1.10 0.82 0.39 2/107 21929
/proc/meminfo: memFree=1813604/2059040 swapFree=4139972/4192956
[pid=21924] ppid=21922 vsize=12064 CPUtime=86.66
/proc/21924/stat : 21924 (pbct) R 21922 21924 21700 0 -1 4202496 2680 0 0 0 7769 897 0 0 25 0 1 0 123204629 12353536 2597 1992294400 134512640 136421960 4289168224 18446744073709551615 135006289 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21924/statm: 3016 2597 213 467 0 2547 0
Current children cumulated CPU time (s) 86.66
Current children cumulated vsize (KiB) 12064

Child status: 0
Real time (s): 86.7551
CPU time (s): 86.7268
CPU user time (s): 77.7462
CPU system time (s): 8.98063
CPU usage (%): 99.9674
Max. virtual memory (cumulated for all children) (KiB): 12064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 77.7462
system time used= 8.98063
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2706
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= 329

runsolver used 0.148977 second user time and 0.417936 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-25 16:27:09
IDJOB=2682616
IDBENCH=1368
IDSOLVER=1192
FILE ID=node009/2682616-1277476029
PBS_JOBID= 11190527
Free space on /tmp= 62400 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900564281.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682616-1277476029/watcher-2682616-1277476029 -o /tmp/evaluation-result-2682616-1277476029/solver-2682616-1277476029 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682616-1277476029.opb

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

MD5SUM BENCH= 0626939ca6144a564c8e59fb048e3266
RANDOM SEED=1397021076

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1824432 kB
Buffers:         40864 kB
Cached:          91796 kB
SwapCached:       5492 kB
Active:          63620 kB
Inactive:        81988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1824432 kB
SwapTotal:     4192956 kB
SwapFree:      4139972 kB
Dirty:            2028 kB
Writeback:           4 kB
AnonPages:       11580 kB
Mapped:          11880 kB
Slab:            67140 kB
PageTables:       4212 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181580 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= 62400 MiB
End job on node009 at 2010-06-25 16:28:36