Trace number 2668994

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 40.6808 40.6951

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900563801.opb
MD5SUMc0dce06d795e831bf046e609ad2fb3fd
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 benchmark6.93994
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 719
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
40.58/40.66	c 35.9455 11.4609 1001 281744
40.58/40.69	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-2668994-1276433104/watcher-2668994-1276433104 -o /tmp/evaluation-result-2668994-1276433104/solver-2668994-1276433104 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668994-1276433104.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 0.97 0.98 3/106 23758
/proc/meminfo: memFree=1830156/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=2208 CPUtime=0
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 254 0 0 0 0 0 0 0 22 0 1 0 18913848 2260992 177 1992294400 134512640 136485738 4294297952 18446744073709551615 134518304 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23758/statm: 552 177 156 482 0 68 0

[startup+0.0941549 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23758
/proc/meminfo: memFree=1830156/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=9912 CPUtime=0.09
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2123 0 0 0 8 1 0 0 22 0 1 0 18913848 10149888 2044 1992294400 134512640 136485738 4294297952 18446744073709551615 134948217 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2478 2044 208 482 0 1994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9912

[startup+0.101154 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23758
/proc/meminfo: memFree=1830156/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=9912 CPUtime=0.09
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2123 0 0 0 8 1 0 0 22 0 1 0 18913848 10149888 2044 1992294400 134512640 136485738 4294297952 18446744073709551615 135680451 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2478 2044 208 482 0 1994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9912

[startup+0.301192 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23758
/proc/meminfo: memFree=1830156/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=10300 CPUtime=0.29
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2214 0 0 0 26 3 0 0 22 0 1 0 18913848 10547200 2135 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2575 2135 223 482 0 2091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10300

[startup+0.701265 s]
/proc/loadavg: 0.99 0.97 0.98 3/106 23758
/proc/meminfo: memFree=1830156/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=10440 CPUtime=0.69
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2266 0 0 0 60 9 0 0 24 0 1 0 18913848 10690560 2187 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2610 2187 223 482 0 2126 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10440

[startup+1.50141 s]
/proc/loadavg: 0.99 0.97 0.98 3/107 23759
/proc/meminfo: memFree=1822088/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=10568 CPUtime=1.49
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2286 0 0 0 127 22 0 0 25 0 1 0 18913848 10821632 2207 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2642 2207 223 482 0 2158 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10568

[startup+3.10171 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1821716/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=10696 CPUtime=3.09
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2328 0 0 0 270 39 0 0 25 0 1 0 18913848 10952704 2249 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2674 2249 223 482 0 2190 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10696

[startup+6.3013 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1821468/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=10956 CPUtime=6.29
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2372 0 0 0 550 79 0 0 25 0 1 0 18913848 11218944 2293 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2739 2293 223 482 0 2255 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10956

[startup+12.7015 s]
/proc/loadavg: 0.99 0.97 0.98 3/107 23759
/proc/meminfo: memFree=1821096/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11084 CPUtime=12.69
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2431 0 0 0 1111 158 0 0 25 0 1 0 18913848 11350016 2352 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2771 2352 223 482 0 2287 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11084

[startup+25.5009 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820724/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11740 CPUtime=25.48
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2562 0 0 0 2244 304 0 0 25 0 1 0 18913848 12021760 2483 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2935 2483 223 482 0 2451 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11740

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

[startup+31.908 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=31.89
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2562 0 0 0 2815 374 0 0 25 0 1 0 18913848 12013568 2483 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2483 223 482 0 2449 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 11732

[startup+35.1006 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=35.09
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2562 0 0 0 3101 408 0 0 25 0 1 0 18913848 12013568 2483 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2483 223 482 0 2449 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 11732

[startup+38.3012 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=38.28
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2563 0 0 0 3383 445 0 0 25 0 1 0 18913848 12013568 2484 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2484 223 482 0 2449 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 11732

[startup+39.9015 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=39.88
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2563 0 0 0 3526 462 0 0 25 0 1 0 18913848 12013568 2484 1992294400 134512640 136485738 4294297952 18446744073709551615 134880558 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2484 223 482 0 2449 0
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (KiB) 11732

[startup+40.3006 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=40.28
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2563 0 0 0 3562 466 0 0 25 0 1 0 18913848 12013568 2484 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2484 223 482 0 2449 0
Current children cumulated CPU time (s) 40.28
Current children cumulated vsize (KiB) 11732

[startup+40.5006 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=40.48
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2563 0 0 0 3579 469 0 0 25 0 1 0 18913848 12013568 2484 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2484 223 482 0 2449 0
Current children cumulated CPU time (s) 40.48
Current children cumulated vsize (KiB) 11732

[startup+40.6006 s]
/proc/loadavg: 0.99 0.97 0.98 2/107 23759
/proc/meminfo: memFree=1820600/2059040 swapFree=4140476/4192956
[pid=23758] ppid=23756 vsize=11732 CPUtime=40.58
/proc/23758/stat : 23758 (pbct) R 23756 23758 23028 0 -1 4202496 2563 0 0 0 3589 469 0 0 25 0 1 0 18913848 12013568 2484 1992294400 134512640 136485738 4294297952 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23758/statm: 2933 2484 223 482 0 2449 0
Current children cumulated CPU time (s) 40.58
Current children cumulated vsize (KiB) 11732

Child status: 0
Real time (s): 40.6951
CPU time (s): 40.6808
CPU user time (s): 35.9715
CPU system time (s): 4.70928
CPU usage (%): 99.9649
Max. virtual memory (cumulated for all children) (KiB): 11740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.9715
system time used= 4.70928
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2587
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= 473

runsolver used 0.06199 second user time and 0.209968 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-13 14:45:04
IDJOB=2668994
IDBENCH=1336
IDSOLVER=1170
FILE ID=node007/2668994-1276433104
PBS_JOBID= 11173317
Free space on /tmp= 62456 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900563801.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668994-1276433104/watcher-2668994-1276433104 -o /tmp/evaluation-result-2668994-1276433104/solver-2668994-1276433104 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668994-1276433104.opb

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

MD5SUM BENCH= c0dce06d795e831bf046e609ad2fb3fd
RANDOM SEED=1351522139

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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:       1830684 kB
Buffers:         25772 kB
Cached:         123204 kB
SwapCached:       6692 kB
Active:         102732 kB
Inactive:        59812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1830684 kB
SwapTotal:     4192956 kB
SwapFree:      4140476 kB
Dirty:            2012 kB
Writeback:           0 kB
AnonPages:       11164 kB
Mapped:          12904 kB
Slab:            44092 kB
PageTables:       4060 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181888 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= 62452 MiB
End job on node007 at 2010-06-13 14:45:45