Trace number 2685237

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 2.03469 2.03485

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j90/
normalized-j903_10-unsat.opb
MD5SUM55ca399383f68b3181f084ca7cab85da
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 benchmark0.142977
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables11830
Total number of constraints36862
Number of constraints which are clauses36606
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints256
Minimum length of a constraint1
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 36
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 203
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
0.29/0.38	c constraints 256/0 clauses 36070/0 units 315
0.29/0.38	c vars 11830
1.50/1.50	c 1.37479 114.719 0 0
1.99/2.03	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-2685237-1278440327/watcher-2685237-1278440327 -o /tmp/evaluation-result-2685237-1278440327/solver-2685237-1278440327 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685237-1278440327.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: 1.15 1.03 1.01 3/106 19824
/proc/meminfo: memFree=1440120/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=2208 CPUtime=0
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 257 0 0 0 0 0 0 0 18 0 1 0 12246471 2260992 180 1992294400 134512640 136485738 4291396304 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19824/statm: 552 180 157 482 0 68 0

[startup+0.0355009 s]
/proc/loadavg: 1.15 1.03 1.01 3/106 19824
/proc/meminfo: memFree=1440120/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=2340 CPUtime=0.03
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 283 0 0 0 3 0 0 0 20 0 1 0 12246471 2396160 206 1992294400 134512640 136485738 4291396304 18446744073709551615 135177563 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19824/statm: 585 206 157 482 0 101 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2340

[startup+0.101506 s]
/proc/loadavg: 1.15 1.03 1.01 3/106 19824
/proc/meminfo: memFree=1440120/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=2604 CPUtime=0.09
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 349 0 0 0 9 0 0 0 20 0 1 0 12246471 2666496 272 1992294400 134512640 136485738 4291396304 18446744073709551615 135860695 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19824/statm: 651 272 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.301522 s]
/proc/loadavg: 1.15 1.03 1.01 3/106 19824
/proc/meminfo: memFree=1440120/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=3264 CPUtime=0.29
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 520 0 0 0 29 0 0 0 20 0 1 0 12246471 3342336 443 1992294400 134512640 136485738 4291396304 18446744073709551615 135848239 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19824/statm: 816 443 157 482 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3264

[startup+0.701554 s]
/proc/loadavg: 1.15 1.03 1.01 3/106 19824
/proc/meminfo: memFree=1440120/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=39972 CPUtime=0.69
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 9946 0 0 0 65 4 0 0 20 0 1 0 12246471 40931328 9344 1992294400 134512640 136485738 4291396304 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19824/statm: 9993 9345 191 482 0 9509 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 39972

[startup+1.50162 s]
/proc/loadavg: 1.14 1.03 1.01 2/107 19825
/proc/meminfo: memFree=1378980/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=117468 CPUtime=1.5
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 30338 0 0 0 137 13 0 0 23 0 1 0 12246471 120287232 28173 1992294400 134512640 136485738 4291396304 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19824/statm: 29367 28173 208 482 0 28883 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 117468

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

[startup+1.90165 s]
/proc/loadavg: 1.14 1.03 1.01 2/107 19825
/proc/meminfo: memFree=1378980/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=109152 CPUtime=1.89
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 30378 0 0 0 176 13 0 0 25 0 1 0 12246471 111771648 26313 1992294400 134512640 136485738 4291396304 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19824/statm: 27288 26313 230 482 0 26804 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 109152

[startup+2.00166 s]
/proc/loadavg: 1.14 1.03 1.01 2/107 19825
/proc/meminfo: memFree=1378980/2059040 swapFree=4192956/4192956
[pid=19824] ppid=19822 vsize=102596 CPUtime=1.99
/proc/19824/stat : 19824 (pbct) R 19822 19824 19027 0 -1 4202496 30379 0 0 0 186 13 0 0 25 0 1 0 12246471 105058304 25324 1992294400 134512640 136485738 4291396304 18446744073709551615 135839975 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19824/statm: 25649 25324 231 482 0 25165 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 102596

Child status: 0
Real time (s): 2.03485
CPU time (s): 2.03469
CPU user time (s): 1.89171
CPU system time (s): 0.142978
CPU usage (%): 99.9921
Max. virtual memory (cumulated for all children) (KiB): 117468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.89171
system time used= 0.142978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30381
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= 2

runsolver used 0.004999 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node003 at 2010-07-06 20:18:48
IDJOB=2685237
IDBENCH=75087
IDSOLVER=1170
FILE ID=node003/2685237-1278440327
PBS_JOBID= 11233467
Free space on /tmp= 62572 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j90/normalized-j903_10-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2685237-1278440327/watcher-2685237-1278440327 -o /tmp/evaluation-result-2685237-1278440327/solver-2685237-1278440327 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685237-1278440327.opb

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

MD5SUM BENCH= 55ca399383f68b3181f084ca7cab85da
RANDOM SEED=255671622

node003.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		: 3000.224
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		: 3000.224
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:       1440516 kB
Buffers:        109628 kB
Cached:         376020 kB
SwapCached:          0 kB
Active:         202836 kB
Inactive:       343084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1440516 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4508 kB
Writeback:          12 kB
AnonPages:       60324 kB
Mapped:          14444 kB
Slab:            50740 kB
PageTables:       4176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179696 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= 62568 MiB
End job on node003 at 2010-07-06 20:18:50