Trace number 2668982

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 79.5549 79.58

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900570242.opb
MD5SUM490d573a1d39845890b306c349815f34
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 benchmark9.75252
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 749
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
79.46/79.55	c 70.9392 11.8438 2151 522363
79.46/79.57	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-2668982-1276432961/watcher-2668982-1276432961 -o /tmp/evaluation-result-2668982-1276432961/solver-2668982-1276432961 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668982-1276432961.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 1.00 1.00 3/106 24368
/proc/meminfo: memFree=1850040/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=2208 CPUtime=0
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 254 0 0 0 0 0 0 0 20 0 1 0 18897388 2260992 177 1992294400 134512640 136485738 4290373408 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24368/statm: 552 177 156 482 0 68 0

[startup+0.0765949 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24368
/proc/meminfo: memFree=1850040/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=6128 CPUtime=0.07
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 1196 0 0 0 7 0 0 0 20 0 1 0 18897388 6275072 1119 1992294400 134512640 136485738 4290373408 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 1532 1120 196 482 0 1048 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6128

[startup+0.101597 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24368
/proc/meminfo: memFree=1850040/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=9912 CPUtime=0.1
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2123 0 0 0 9 1 0 0 20 0 1 0 18897388 10149888 2044 1992294400 134512640 136485738 4290373408 18446744073709551615 135868597 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2478 2044 208 482 0 1994 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 9912

[startup+0.301616 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24368
/proc/meminfo: memFree=1850040/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=10300 CPUtime=0.29
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2214 0 0 0 26 3 0 0 20 0 1 0 18897388 10547200 2135 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2575 2135 223 482 0 2091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10300

[startup+0.701653 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 24368
/proc/meminfo: memFree=1850040/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=10432 CPUtime=0.69
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2261 0 0 0 62 7 0 0 21 0 1 0 18897388 10682368 2182 1992294400 134512640 136485738 4290373408 18446744073709551615 135037656 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2608 2182 223 482 0 2124 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10432

[startup+1.50073 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1841972/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=10560 CPUtime=1.49
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2289 0 0 0 134 15 0 0 23 0 1 0 18897388 10813440 2210 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2640 2210 223 482 0 2156 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10560

[startup+3.10088 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1841724/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=10688 CPUtime=3.09
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2323 0 0 0 275 34 0 0 25 0 1 0 18897388 10944512 2244 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2672 2244 223 482 0 2188 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10688

[startup+6.30118 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1841352/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=10960 CPUtime=6.29
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2378 0 0 0 558 71 0 0 25 0 1 0 18897388 11223040 2299 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2740 2299 223 482 0 2256 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10960

[startup+12.7008 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1841104/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=11088 CPUtime=12.69
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2424 0 0 0 1122 147 0 0 25 0 1 0 18897388 11354112 2345 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2772 2345 223 482 0 2288 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11088

[startup+25.501 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1840732/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=11472 CPUtime=25.48
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2504 0 0 0 2257 291 0 0 25 0 1 0 18897388 11747328 2425 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2868 2425 223 482 0 2384 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11472

[startup+51.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24369
/proc/meminfo: memFree=1840236/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=11992 CPUtime=51.07
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2643 0 0 0 4550 557 0 0 25 0 1 0 18897388 12279808 2564 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 2998 2564 223 482 0 2514 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 11992

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

[startup+63.9006 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1840112/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=63.87
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2660 0 0 0 5697 690 0 0 25 0 1 0 18897388 12414976 2581 1992294400 134512640 136485738 4290373408 18446744073709551615 134623088 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2581 223 482 0 2547 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 12124

[startup+70.3002 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1840112/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=70.27
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2677 0 0 0 6274 753 0 0 25 0 1 0 18897388 12414976 2598 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2598 223 482 0 2547 0
Current children cumulated CPU time (s) 70.27
Current children cumulated vsize (KiB) 12124

[startup+73.5005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1840112/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=73.47
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2681 0 0 0 6557 790 0 0 25 0 1 0 18897388 12414976 2602 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2602 223 482 0 2547 0
Current children cumulated CPU time (s) 73.47
Current children cumulated vsize (KiB) 12124

[startup+76.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1840112/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=76.67
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2681 0 0 0 6839 828 0 0 25 0 1 0 18897388 12414976 2602 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2602 223 482 0 2547 0
Current children cumulated CPU time (s) 76.67
Current children cumulated vsize (KiB) 12124

[startup+78.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1840112/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=78.27
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2686 0 0 0 6983 844 0 0 25 0 1 0 18897388 12414976 2607 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2607 223 482 0 2547 0
Current children cumulated CPU time (s) 78.27
Current children cumulated vsize (KiB) 12124

[startup+79.1011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1839988/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=79.07
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2688 0 0 0 7055 852 0 0 25 0 1 0 18897388 12414976 2609 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2609 223 482 0 2547 0
Current children cumulated CPU time (s) 79.07
Current children cumulated vsize (KiB) 12124

[startup+79.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 24371
/proc/meminfo: memFree=1839988/2059040 swapFree=4135784/4192956
[pid=24368] ppid=24366 vsize=12124 CPUtime=79.46
/proc/24368/stat : 24368 (pbct) R 24366 24368 24140 0 -1 4202496 2688 0 0 0 7089 857 0 0 25 0 1 0 18897388 12414976 2609 1992294400 134512640 136485738 4290373408 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24368/statm: 3031 2609 223 482 0 2547 0
Current children cumulated CPU time (s) 79.46
Current children cumulated vsize (KiB) 12124

Child status: 0
Real time (s): 79.58
CPU time (s): 79.5549
CPU user time (s): 70.9642
CPU system time (s): 8.59069
CPU usage (%): 99.9685
Max. virtual memory (cumulated for all children) (KiB): 12124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 70.9642
system time used= 8.59069
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2712
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= 228

runsolver used 0.141978 second user time and 0.374943 second system time

The end

Launcher Data 

Begin job on node015 at 2010-06-13 14:42:41
IDJOB=2668982
IDBENCH=1324
IDSOLVER=1170
FILE ID=node015/2668982-1276432961
PBS_JOBID= 11173314
Free space on /tmp= 62548 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900570242.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668982-1276432961/watcher-2668982-1276432961 -o /tmp/evaluation-result-2668982-1276432961/solver-2668982-1276432961 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668982-1276432961.opb

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

MD5SUM BENCH= 490d573a1d39845890b306c349815f34
RANDOM SEED=92323193

node015.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		: 3000.244
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		: 3000.244
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:       1850568 kB
Buffers:         44200 kB
Cached:          93816 kB
SwapCached:      17360 kB
Active:          84616 kB
Inactive:        73444 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1850568 kB
SwapTotal:     4192956 kB
SwapFree:      4135784 kB
Dirty:            2152 kB
Writeback:           0 kB
AnonPages:       11544 kB
Mapped:           9124 kB
Slab:            28580 kB
PageTables:       3964 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180992 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= 62544 MiB
End job on node015 at 2010-06-13 14:44:00