Trace number 2684705

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 0.58591 0.588171

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j30/
normalized-j308_6-sat.opb
MD5SUMb8511c7f7603570290c2b75f39e11b42
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.039993
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables2976
Total number of constraints9039
Number of constraints which are clauses8851
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints188
Minimum length of a constraint1
Maximum length of a constraint17
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 40
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 127
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
0.02/0.09	c constraints 188/0 clauses 8675/0 units 109
0.02/0.09	c vars 2976
0.38/0.43	c 0.39094 35.6953 0 0
0.49/0.58	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-2684705-1278432595/watcher-2684705-1278432595 -o /tmp/evaluation-result-2684705-1278432595/solver-2684705-1278432595 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684705-1278432595.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: 0.58 0.15 0.04 3/106 20200
/proc/meminfo: memFree=1425512/2059040 swapFree=4192956/4192956
[pid=20200] ppid=20198 vsize=2208 CPUtime=0
/proc/20200/stat : 20200 (pbct) R 20198 20200 19731 0 -1 4202496 257 0 0 0 0 0 0 0 19 0 1 0 11470144 2260992 179 1992294400 134512640 136485738 4287986768 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20200/statm: 552 179 157 482 0 68 0

[startup+0.0319991 s]
/proc/loadavg: 0.58 0.15 0.04 3/106 20200
/proc/meminfo: memFree=1425512/2059040 swapFree=4192956/4192956
[pid=20200] ppid=20198 vsize=2340 CPUtime=0.02
/proc/20200/stat : 20200 (pbct) R 20198 20200 19731 0 -1 4202496 281 0 0 0 2 0 0 0 19 0 1 0 11470144 2396160 203 1992294400 134512640 136485738 4287986768 18446744073709551615 135562305 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20200/statm: 585 203 157 482 0 101 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2340

[startup+0.100997 s]
/proc/loadavg: 0.58 0.15 0.04 3/106 20200
/proc/meminfo: memFree=1425512/2059040 swapFree=4192956/4192956
[pid=20200] ppid=20198 vsize=4176 CPUtime=0.09
/proc/20200/stat : 20200 (pbct) R 20198 20200 19731 0 -1 4202496 704 0 0 0 9 0 0 0 19 0 1 0 11470144 4276224 626 1992294400 134512640 136485738 4287986768 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/20200/statm: 1044 628 191 482 0 560 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4176

[startup+0.300991 s]
/proc/loadavg: 0.58 0.15 0.04 3/106 20200
/proc/meminfo: memFree=1425512/2059040 swapFree=4192956/4192956
[pid=20200] ppid=20198 vsize=22320 CPUtime=0.29
/proc/20200/stat : 20200 (pbct) R 20198 20200 19731 0 -1 4202496 5289 0 0 0 27 2 0 0 20 0 1 0 11470144 22855680 5145 1992294400 134512640 136485738 4287986768 18446744073709551615 134726160 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/20200/statm: 5580 5146 196 482 0 5096 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 22320

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

[startup+0.500985 s]
/proc/loadavg: 0.58 0.15 0.04 3/106 20200
/proc/meminfo: memFree=1425512/2059040 swapFree=4192956/4192956
[pid=20200] ppid=20198 vsize=34860 CPUtime=0.49
/proc/20200/stat : 20200 (pbct) R 20198 20200 19731 0 -1 4202496 9034 0 0 0 45 4 0 0 20 0 1 0 11470144 35696640 8270 1992294400 134512640 136485738 4287986768 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/20200/statm: 8715 8270 244 482 0 8231 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 34860

Child status: 0
Real time (s): 0.588171
CPU time (s): 0.58591
CPU user time (s): 0.540917
CPU system time (s): 0.044993
CPU usage (%): 99.6156
Max. virtual memory (cumulated for all children) (KiB): 35372

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.540917
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9035
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= 9

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node031 at 2010-07-06 18:09:55
IDJOB=2684705
IDBENCH=73416
IDSOLVER=1170
FILE ID=node031/2684705-1278432595
PBS_JOBID= 11233447
Free space on /tmp= 62560 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j30/normalized-j308_6-sat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684705-1278432595/watcher-2684705-1278432595 -o /tmp/evaluation-result-2684705-1278432595/solver-2684705-1278432595 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684705-1278432595.opb

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

MD5SUM BENCH= b8511c7f7603570290c2b75f39e11b42
RANDOM SEED=891980783

node031.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		: 3000.220
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	: 6000.44
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		: 3000.220
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1425908 kB
Buffers:        101084 kB
Cached:         393220 kB
SwapCached:          0 kB
Active:         192596 kB
Inactive:       361876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1425908 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2556 kB
Writeback:           0 kB
AnonPages:       60172 kB
Mapped:          14424 kB
Slab:            56600 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180508 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62560 MiB
End job on node031 at 2010-07-06 18:09:56