Trace number 2669141

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 0.1Wrong UNSAT 2.10968 2.11244

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/www.ps.uni-sb.de/
~walser/benchmarks/ppp-problems/normalized-ppp:1-13.opb
MD5SUMbcdf4c9a1de867d3db370c95867fefb5
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark1.66275
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables4632
Total number of constraints30964
Number of constraints which are clauses29940
Number of constraints which are cardinality constraints (but not clauses)946
Number of constraints which are nor clauses,nor cardinality constraints78
Minimum length of a constraint3
Maximum length of a constraint29
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 10
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 104
Number of bits of the biggest sum of numbers7
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
0.39/0.48	c constraints 1024/0 clauses 29940/0 units 0
0.39/0.48	c vars 4632
1.59/1.64	c 1.55376 102.254 0 0
2.09/2.10	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-2669141-1276435562/watcher-2669141-1276435562 -o /tmp/evaluation-result-2669141-1276435562/solver-2669141-1276435562 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669141-1276435562.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: 0.92 1.00 0.99 3/106 26900
/proc/meminfo: memFree=1873644/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=2208 CPUtime=0
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 275 0 0 0 0 0 0 0 19 0 1 0 19160179 2260992 197 1992294400 134512640 136485738 4294438080 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26900/statm: 552 197 156 482 0 68 0

[startup+0.013276 s]
/proc/loadavg: 0.92 1.00 0.99 3/106 26900
/proc/meminfo: memFree=1873644/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=2340 CPUtime=0
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 312 0 0 0 0 0 0 0 19 0 1 0 19160179 2396160 234 1992294400 134512640 136485738 4294438080 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26900/statm: 585 234 156 482 0 101 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2340

[startup+0.101285 s]
/proc/loadavg: 0.92 1.00 0.99 3/106 26900
/proc/meminfo: memFree=1873644/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=2876 CPUtime=0.09
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 437 0 0 0 9 0 0 0 19 0 1 0 19160179 2945024 359 1992294400 134512640 136485738 4294438080 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26900/statm: 719 360 156 482 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2876

[startup+0.301305 s]
/proc/loadavg: 0.92 1.00 0.99 3/106 26900
/proc/meminfo: memFree=1873644/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=3404 CPUtime=0.29
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 555 0 0 0 29 0 0 0 20 0 1 0 19160179 3485696 477 1992294400 134512640 136485738 4294438080 18446744073709551615 134533560 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26900/statm: 851 477 156 482 0 367 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3404

[startup+0.701346 s]
/proc/loadavg: 0.92 1.00 0.99 3/106 26900
/proc/meminfo: memFree=1873644/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=24648 CPUtime=0.69
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 6059 0 0 0 67 2 0 0 20 0 1 0 19160179 25239552 5584 1992294400 134512640 136485738 4294438080 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26900/statm: 6162 5586 191 482 0 5678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24648

[startup+1.50143 s]
/proc/loadavg: 0.93 1.00 0.99 2/107 26901
/proc/meminfo: memFree=1832964/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=101192 CPUtime=1.49
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 26331 0 0 0 141 8 0 0 22 0 1 0 19160179 103620608 24228 1992294400 134512640 136485738 4294438080 18446744073709551615 134948170 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26900/statm: 25298 24228 208 482 0 24814 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 101192

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

[startup+1.90047 s]
/proc/loadavg: 0.93 1.00 0.99 2/107 26901
/proc/meminfo: memFree=1832964/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=97992 CPUtime=1.89
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202496 27296 0 0 0 180 9 0 0 25 0 1 0 19160179 100343808 23691 1992294400 134512640 136485738 4294438080 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26900/statm: 24498 23691 242 482 0 24014 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 97992

[startup+2.10049 s]
/proc/loadavg: 0.93 1.00 0.99 2/107 26901
/proc/meminfo: memFree=1782744/2059040 swapFree=4135652/4192956
[pid=26900] ppid=26898 vsize=0 CPUtime=2.09
/proc/26900/stat : 26900 (pbct) R 26898 26900 25934 0 -1 4202500 27297 0 0 0 200 9 0 0 25 0 1 0 19160179 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/26900/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 2.11244
CPU time (s): 2.10968
CPU user time (s): 2.00569
CPU system time (s): 0.103984
CPU usage (%): 99.8692
Max. virtual memory (cumulated for all children) (KiB): 101916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.00569
system time used= 0.103984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27297
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= 4

runsolver used 0.008998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 15:26:02
IDJOB=2669141
IDBENCH=1497
IDSOLVER=1170
FILE ID=node002/2669141-1276435562
PBS_JOBID= 11173318
Free space on /tmp= 62396 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/www.ps.uni-sb.de/~walser/benchmarks/ppp-problems/normalized-ppp:1-13.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669141-1276435562/watcher-2669141-1276435562 -o /tmp/evaluation-result-2669141-1276435562/solver-2669141-1276435562 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669141-1276435562.opb

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

MD5SUM BENCH= bcdf4c9a1de867d3db370c95867fefb5
RANDOM SEED=26114270

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:       1874172 kB
Buffers:         20044 kB
Cached:          88608 kB
SwapCached:       9840 kB
Active:          19928 kB
Inactive:       100740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1874172 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            3072 kB
Writeback:           8 kB
AnonPages:       10696 kB
Mapped:           9120 kB
Slab:            42336 kB
PageTables:       3932 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179836 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 15:26:04