Trace number 2685125

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 3.14752 3.14864

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j90/
normalized-j9035_1-unsat.opb
MD5SUMe27627ae64f743135eba4ae37b0b2df0
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.238963
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables17836
Total number of constraints61428
Number of constraints which are clauses61040
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints388
Minimum length of a constraint1
Maximum length of a constraint25
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 28
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 185
Number of bits of the biggest sum of numbers8
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
0.59/0.64	c constraints 388/0 clauses 60392/0 units 1725
0.59/0.64	c vars 17836
2.30/2.33	c 2.14267 176.363 0 0
3.09/3.14	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-2685125-1278439841/watcher-2685125-1278439841 -o /tmp/evaluation-result-2685125-1278439841/solver-2685125-1278439841 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685125-1278439841.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 1.03 1.08 3/106 19523
/proc/meminfo: memFree=1465188/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=2208 CPUtime=0
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 256 0 0 0 0 0 0 0 18 0 1 0 12191179 2260992 179 1992294400 134512640 136485738 4290642192 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19523/statm: 552 179 157 482 0 68 0

[startup+0.10676 s]
/proc/loadavg: 0.99 1.03 1.08 3/106 19523
/proc/meminfo: memFree=1465188/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=2604 CPUtime=0.1
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 352 0 0 0 10 0 0 0 20 0 1 0 12191179 2666496 275 1992294400 134512640 136485738 4290642192 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19523/statm: 651 275 157 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.200776 s]
/proc/loadavg: 0.99 1.03 1.08 3/106 19523
/proc/meminfo: memFree=1465188/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=3000 CPUtime=0.19
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 444 0 0 0 19 0 0 0 20 0 1 0 12191179 3072000 367 1992294400 134512640 136485738 4290642192 18446744073709551615 135848264 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19523/statm: 750 367 157 482 0 266 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3000

[startup+0.300793 s]
/proc/loadavg: 0.99 1.03 1.08 3/106 19523
/proc/meminfo: memFree=1465188/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=3264 CPUtime=0.29
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 541 0 0 0 29 0 0 0 20 0 1 0 12191179 3342336 464 1992294400 134512640 136485738 4290642192 18446744073709551615 135415695 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19523/statm: 816 464 157 482 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3264

[startup+0.700863 s]
/proc/loadavg: 0.99 1.03 1.08 3/106 19523
/proc/meminfo: memFree=1465188/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=13068 CPUtime=0.69
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 2965 0 0 0 68 1 0 0 21 0 1 0 12191179 13381632 2855 1992294400 134512640 136485738 4290642192 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19523/statm: 3267 2857 191 482 0 2783 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13068

[startup+1.501 s]
/proc/loadavg: 0.99 1.03 1.08 2/107 19524
/proc/meminfo: memFree=1413968/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=90344 CPUtime=1.49
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 23605 0 0 0 139 10 0 0 23 0 1 0 12191179 92512256 22032 1992294400 134512640 136485738 4290642192 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19523/statm: 22586 22032 196 482 0 22102 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 90344

[startup+3.10128 s]
/proc/loadavg: 0.99 1.03 1.08 2/107 19524
/proc/meminfo: memFree=1293440/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=155872 CPUtime=3.09
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 46820 0 0 0 291 18 0 0 25 0 1 0 12191179 159612928 38686 1992294400 134512640 136485738 4290642192 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19523/statm: 38968 38686 231 482 0 38484 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 155872

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

[startup+3.10128 s]
/proc/loadavg: 0.99 1.03 1.08 2/107 19524
/proc/meminfo: memFree=1293440/2059040 swapFree=4192956/4192956
[pid=19523] ppid=19521 vsize=155872 CPUtime=3.09
/proc/19523/stat : 19523 (pbct) R 19521 19523 19102 0 -1 4202496 46820 0 0 0 291 18 0 0 25 0 1 0 12191179 159612928 38686 1992294400 134512640 136485738 4290642192 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19523/statm: 38968 38686 231 482 0 38484 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 155872

Child status: 0
Real time (s): 3.14864
CPU time (s): 3.14752
CPU user time (s): 2.94355
CPU system time (s): 0.203968
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 180816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.94355
system time used= 0.203968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 46822
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= 11

runsolver used 0.007998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node048 at 2010-07-06 20:10:41
IDJOB=2685125
IDBENCH=74647
IDSOLVER=1170
FILE ID=node048/2685125-1278439841
PBS_JOBID= 11233477
Free space on /tmp= 62564 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j90/normalized-j9035_1-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2685125-1278439841/watcher-2685125-1278439841 -o /tmp/evaluation-result-2685125-1278439841/solver-2685125-1278439841 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685125-1278439841.opb

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

MD5SUM BENCH= e27627ae64f743135eba4ae37b0b2df0
RANDOM SEED=2015516349

node048.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		: 3000.262
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		: 3000.262
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	: 5599.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1465592 kB
Buffers:        110000 kB
Cached:         351352 kB
SwapCached:          0 kB
Active:         179440 kB
Inactive:       341888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1465592 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3896 kB
Writeback:           0 kB
AnonPages:       59940 kB
Mapped:          14392 kB
Slab:            50036 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180504 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= 62564 MiB
End job on node048 at 2010-07-06 20:10:45