Trace number 2682604

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 62.9164 62.931

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900551864.opb
MD5SUM733d8edd6a6cbfe19e20f4970079db5a
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 benchmark24.1743
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 687
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
62.88/62.90	c 56.0425 11.6445 1489 420130
62.88/62.93	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-2682604-1277475954/watcher-2682604-1277475954 -o /tmp/evaluation-result-2682604-1277475954/solver-2682604-1277475954 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682604-1277475954.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 0.65 0.28 3/106 22322
/proc/meminfo: memFree=1826344/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=2136 CPUtime=0
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 247 0 0 0 0 0 0 0 17 0 1 0 121251760 2187264 166 1992294400 134512640 136421960 4291469408 18446744073709551615 135641987 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22322/statm: 534 166 144 467 0 65 0

[startup+0.0483019 s]
/proc/loadavg: 0.99 0.65 0.28 3/106 22322
/proc/meminfo: memFree=1826344/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=4800 CPUtime=0.04
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 885 0 0 0 4 0 0 0 17 0 1 0 121251760 4915200 804 1992294400 134512640 136421960 4291469408 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 1200 806 187 467 0 731 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4800

[startup+0.100305 s]
/proc/loadavg: 0.99 0.65 0.28 3/106 22322
/proc/meminfo: memFree=1826344/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10100 CPUtime=0.09
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2173 0 0 0 9 0 0 0 17 0 1 0 121251760 10342400 2090 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2525 2090 213 467 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10100

[startup+0.300323 s]
/proc/loadavg: 0.99 0.65 0.28 3/106 22322
/proc/meminfo: memFree=1826344/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10228 CPUtime=0.29
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2212 0 0 0 25 4 0 0 17 0 1 0 121251760 10473472 2129 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2557 2129 213 467 0 2088 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10228

[startup+0.700361 s]
/proc/loadavg: 0.99 0.65 0.28 3/106 22322
/proc/meminfo: memFree=1826344/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10356 CPUtime=0.69
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2241 0 0 0 59 10 0 0 17 0 1 0 121251760 10604544 2158 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2589 2158 213 467 0 2120 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10356

[startup+1.50044 s]
/proc/loadavg: 0.99 0.65 0.28 2/107 22323
/proc/meminfo: memFree=1818524/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10612 CPUtime=1.49
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2300 0 0 0 129 20 0 0 18 0 1 0 121251760 10866688 2217 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2653 2217 213 467 0 2184 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10612

[startup+3.10059 s]
/proc/loadavg: 0.99 0.66 0.29 2/107 22323
/proc/meminfo: memFree=1818028/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10612 CPUtime=3.09
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2322 0 0 0 269 40 0 0 21 0 1 0 121251760 10866688 2239 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2653 2239 213 467 0 2184 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10612

[startup+6.30089 s]
/proc/loadavg: 0.99 0.66 0.29 2/107 22323
/proc/meminfo: memFree=1817656/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=10868 CPUtime=6.29
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2368 0 0 0 554 75 0 0 25 0 1 0 121251760 11128832 2285 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2717 2285 213 467 0 2248 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10868

[startup+12.7015 s]
/proc/loadavg: 0.99 0.67 0.29 2/107 22323
/proc/meminfo: memFree=1817284/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11132 CPUtime=12.69
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2450 0 0 0 1124 145 0 0 25 0 1 0 121251760 11399168 2367 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2783 2367 213 467 0 2314 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11132

[startup+25.5017 s]
/proc/loadavg: 0.99 0.68 0.30 2/107 22323
/proc/meminfo: memFree=1816912/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11524 CPUtime=25.48
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2529 0 0 0 2265 283 0 0 25 0 1 0 121251760 11800576 2446 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2881 2446 213 467 0 2412 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11524

[startup+51.1012 s]
/proc/loadavg: 0.99 0.70 0.32 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=51.08
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2620 0 0 0 4553 555 0 0 25 0 1 0 121251760 12206080 2537 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2537 213 467 0 2511 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 11920

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

[startup+57.5018 s]
/proc/loadavg: 0.99 0.71 0.32 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=57.48
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2624 0 0 0 5121 627 0 0 25 0 1 0 121251760 12206080 2541 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2541 213 467 0 2511 0
Current children cumulated CPU time (s) 57.48
Current children cumulated vsize (KiB) 11920

[startup+60.7011 s]
/proc/loadavg: 0.99 0.71 0.32 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=60.68
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2624 0 0 0 5406 662 0 0 25 0 1 0 121251760 12206080 2541 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2541 213 467 0 2511 0
Current children cumulated CPU time (s) 60.68
Current children cumulated vsize (KiB) 11920

[startup+62.3012 s]
/proc/loadavg: 0.99 0.71 0.32 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=62.28
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2624 0 0 0 5551 677 0 0 25 0 1 0 121251760 12206080 2541 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2541 213 467 0 2511 0
Current children cumulated CPU time (s) 62.28
Current children cumulated vsize (KiB) 11920

[startup+62.7083 s]
/proc/loadavg: 0.99 0.72 0.33 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=62.68
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2624 0 0 0 5586 682 0 0 25 0 1 0 121251760 12206080 2541 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2541 213 467 0 2511 0
Current children cumulated CPU time (s) 62.68
Current children cumulated vsize (KiB) 11920

[startup+62.9013 s]
/proc/loadavg: 0.99 0.72 0.33 2/107 22323
/proc/meminfo: memFree=1816540/2059040 swapFree=4139948/4192956
[pid=22322] ppid=22320 vsize=11920 CPUtime=62.88
/proc/22322/stat : 22322 (pbct) R 22320 22322 22152 0 -1 4202496 2624 0 0 0 5604 684 0 0 25 0 1 0 121251760 12206080 2541 1992294400 134512640 136421960 4291469408 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22322/statm: 2980 2541 213 467 0 2511 0
Current children cumulated CPU time (s) 62.88
Current children cumulated vsize (KiB) 11920

Child status: 0
Real time (s): 62.931
CPU time (s): 62.9164
CPU user time (s): 56.0665
CPU system time (s): 6.84996
CPU usage (%): 99.9769
Max. virtual memory (cumulated for all children) (KiB): 11920

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 56.0665
system time used= 6.84996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2650
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= 165

runsolver used 0.108983 second user time and 0.300954 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-25 16:25:54
IDJOB=2682604
IDBENCH=1353
IDSOLVER=1192
FILE ID=node018/2682604-1277475954
PBS_JOBID= 11190519
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900551864.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682604-1277475954/watcher-2682604-1277475954 -o /tmp/evaluation-result-2682604-1277475954/solver-2682604-1277475954 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682604-1277475954.opb

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

MD5SUM BENCH= 733d8edd6a6cbfe19e20f4970079db5a
RANDOM SEED=461172341

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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:       1826996 kB
Buffers:         39376 kB
Cached:          86356 kB
SwapCached:       5476 kB
Active:          67736 kB
Inactive:        70972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1826996 kB
SwapTotal:     4192956 kB
SwapFree:      4139948 kB
Dirty:            2016 kB
Writeback:           0 kB
AnonPages:       11632 kB
Mapped:          11928 kB
Slab:            71588 kB
PageTables:       4192 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183044 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= 62488 MiB
End job on node018 at 2010-06-25 16:26:57