Trace number 2668947

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 0.1UNSAT 32.1771 32.1858

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900546076.opb
MD5SUM148040983257ccf233b3daf7936d3c1f
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 benchmark8.59869
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 723
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.04	c constraints 23/0 clauses 2684/0 units 0
0.00/0.04	c vars 231
32.09/32.15	c 28.4497 11.457 2373 230932
32.09/32.18	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-2668947-1276432535/watcher-2668947-1276432535 -o /tmp/evaluation-result-2668947-1276432535/solver-2668947-1276432535 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668947-1276432535.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 0.99 0.99 3/106 26320
/proc/meminfo: memFree=1848064/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=2208 CPUtime=0
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 254 0 0 0 0 0 0 0 22 0 1 0 18857447 2260992 176 1992294400 134512640 136485738 4286790448 18446744073709551615 134532549 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26320/statm: 552 176 156 482 0 68 0

[startup+0.101133 s]
/proc/loadavg: 1.00 0.99 0.99 3/106 26320
/proc/meminfo: memFree=1848064/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=9912 CPUtime=0.09
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2123 0 0 0 9 0 0 0 22 0 1 0 18857447 10149888 2043 1992294400 134512640 136485738 4286790448 18446744073709551615 135859295 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2478 2043 208 482 0 1994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9912

[startup+0.202144 s]
/proc/loadavg: 1.00 0.99 0.99 3/106 26320
/proc/meminfo: memFree=1848064/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10172 CPUtime=0.19
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2197 0 0 0 18 1 0 0 22 0 1 0 18857447 10416128 2117 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2543 2117 223 482 0 2059 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10172

[startup+0.301153 s]
/proc/loadavg: 1.00 0.99 0.99 3/106 26320
/proc/meminfo: memFree=1848064/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10300 CPUtime=0.29
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2212 0 0 0 27 2 0 0 22 0 1 0 18857447 10547200 2132 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2575 2132 223 482 0 2091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10300

[startup+0.700194 s]
/proc/loadavg: 1.00 0.99 0.99 3/106 26320
/proc/meminfo: memFree=1848064/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10428 CPUtime=0.69
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2247 0 0 0 62 7 0 0 23 0 1 0 18857447 10678272 2167 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2607 2167 223 482 0 2123 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10428

[startup+1.50028 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1840244/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10560 CPUtime=1.49
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2291 0 0 0 132 17 0 0 25 0 1 0 18857447 10813440 2211 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2640 2211 223 482 0 2156 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10560

[startup+3.10044 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1839872/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10688 CPUtime=3.09
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2330 0 0 0 274 35 0 0 25 0 1 0 18857447 10944512 2250 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2672 2250 223 482 0 2188 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10688

[startup+6.30177 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1839500/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=10952 CPUtime=6.29
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2380 0 0 0 561 68 0 0 25 0 1 0 18857447 11214848 2300 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2738 2300 223 482 0 2254 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10952

[startup+12.7014 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1839128/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11208 CPUtime=12.69
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2445 0 0 0 1127 142 0 0 25 0 1 0 18857447 11476992 2365 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2802 2365 223 482 0 2318 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11208

[startup+25.5017 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838756/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11596 CPUtime=25.49
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2538 0 0 0 2261 288 0 0 25 0 1 0 18857447 11874304 2458 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2899 2458 223 482 0 2415 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 11596

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

[startup+25.6017 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838756/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11596 CPUtime=25.58
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2538 0 0 0 2268 290 0 0 25 0 1 0 18857447 11874304 2458 1992294400 134512640 136485738 4286790448 18446744073709551615 134882541 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2899 2458 223 482 0 2415 0
Current children cumulated CPU time (s) 25.58
Current children cumulated vsize (KiB) 11596

[startup+28.8011 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838756/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11596 CPUtime=28.78
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2546 0 0 0 2550 328 0 0 25 0 1 0 18857447 11874304 2466 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2899 2466 223 482 0 2415 0
Current children cumulated CPU time (s) 28.78
Current children cumulated vsize (KiB) 11596

[startup+30.4012 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838756/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11596 CPUtime=30.38
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2557 0 0 0 2691 347 0 0 25 0 1 0 18857447 11874304 2477 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2899 2477 223 482 0 2415 0
Current children cumulated CPU time (s) 30.38
Current children cumulated vsize (KiB) 11596

[startup+31.2013 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838632/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11728 CPUtime=31.19
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2568 0 0 0 2762 357 0 0 25 0 1 0 18857447 12009472 2488 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2932 2488 223 482 0 2448 0
Current children cumulated CPU time (s) 31.19
Current children cumulated vsize (KiB) 11728

[startup+31.6014 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838632/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11728 CPUtime=31.59
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2568 0 0 0 2797 362 0 0 25 0 1 0 18857447 12009472 2488 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2932 2488 223 482 0 2448 0
Current children cumulated CPU time (s) 31.59
Current children cumulated vsize (KiB) 11728

[startup+32.0084 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838632/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11728 CPUtime=31.99
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2568 0 0 0 2832 367 0 0 25 0 1 0 18857447 12009472 2488 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2932 2488 223 482 0 2448 0
Current children cumulated CPU time (s) 31.99
Current children cumulated vsize (KiB) 11728

[startup+32.1014 s]
/proc/loadavg: 1.00 0.99 0.99 2/107 26321
/proc/meminfo: memFree=1838632/2059040 swapFree=4135652/4192956
[pid=26320] ppid=26318 vsize=11728 CPUtime=32.09
/proc/26320/stat : 26320 (pbct) R 26318 26320 25934 0 -1 4202496 2568 0 0 0 2840 369 0 0 25 0 1 0 18857447 12009472 2488 1992294400 134512640 136485738 4286790448 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26320/statm: 2932 2488 223 482 0 2448 0
Current children cumulated CPU time (s) 32.09
Current children cumulated vsize (KiB) 11728

Child status: 0
Real time (s): 32.1858
CPU time (s): 32.1771
CPU user time (s): 28.4747
CPU system time (s): 3.70244
CPU usage (%): 99.9729
Max. virtual memory (cumulated for all children) (KiB): 11728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.4747
system time used= 3.70244
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2592
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= 2
involuntary context switches= 73

runsolver used 0.058991 second user time and 0.155976 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 14:35:35
IDJOB=2668947
IDBENCH=1285
IDSOLVER=1170
FILE ID=node002/2668947-1276432535
PBS_JOBID= 11173318
Free space on /tmp= 62400 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900546076.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668947-1276432535/watcher-2668947-1276432535 -o /tmp/evaluation-result-2668947-1276432535/solver-2668947-1276432535 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668947-1276432535.opb

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

MD5SUM BENCH= 148040983257ccf233b3daf7936d3c1f
RANDOM SEED=1457757492

node002.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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1848716 kB
Buffers:         19524 kB
Cached:         115004 kB
SwapCached:       9944 kB
Active:          68180 kB
Inactive:        78408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1848716 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            1968 kB
Writeback:           0 kB
AnonPages:       10728 kB
Mapped:           9120 kB
Slab:            41952 kB
PageTables:       4024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179812 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= 62396 MiB
End job on node002 at 2010-06-13 14:36:07