Trace number 2685129

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 0.1 fixedUNSAT 2.67759 2.67809

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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
1.49/1.58	c constraints 388/0 clauses 8130/0 units 14378
1.49/1.58	c vars 17836
2.29/2.30	c 2.22866 80.1914 0 0
2.59/2.67	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-2685129-1278439845/watcher-2685129-1278439845 -o /tmp/evaluation-result-2685129-1278439845/solver-2685129-1278439845 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685129-1278439845.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: 0.98 0.98 0.99 3/106 19528
/proc/meminfo: memFree=1809416/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=2136 CPUtime=0
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 247 0 0 0 0 0 0 0 20 0 1 0 12196801 2187264 166 1992294400 134512640 136421960 4286845152 18446744073709551615 135152299 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 534 166 144 467 0 65 0

[startup+0.077472 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 19528
/proc/meminfo: memFree=1809416/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=2400 CPUtime=0.07
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 321 0 0 0 7 0 0 0 20 0 1 0 12196801 2457600 240 1992294400 134512640 136421960 4286845152 18446744073709551615 135818268 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 600 240 144 467 0 131 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2400

[startup+0.101474 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 19528
/proc/meminfo: memFree=1809416/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=2532 CPUtime=0.1
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 344 0 0 0 10 0 0 0 20 0 1 0 12196801 2592768 263 1992294400 134512640 136421960 4286845152 18446744073709551615 134523522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 633 263 144 467 0 164 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2532

[startup+0.300493 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 19528
/proc/meminfo: memFree=1809416/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=3452 CPUtime=0.29
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 576 0 0 0 29 0 0 0 20 0 1 0 12196801 3534848 462 1992294400 134512640 136421960 4286845152 18446744073709551615 135809630 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 863 462 144 467 0 394 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3452

[startup+0.700531 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 19528
/proc/meminfo: memFree=1809416/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=5036 CPUtime=0.69
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 997 0 0 0 69 0 0 0 21 0 1 0 12196801 5156864 883 1992294400 134512640 136421960 4286845152 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 1259 883 145 467 0 790 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5036

[startup+1.50061 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 19529
/proc/meminfo: memFree=1806432/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=5168 CPUtime=1.49
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 1024 0 0 0 149 0 0 0 23 0 1 0 12196801 5292032 910 1992294400 134512640 136421960 4286845152 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19528/statm: 1292 910 146 467 0 823 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5168

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

[startup+2.30068 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 19529
/proc/meminfo: memFree=1745176/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=81528 CPUtime=2.29
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 20663 0 0 0 222 7 0 0 25 0 1 0 12196801 83484672 19646 1992294400 134512640 136421960 4286845152 18446744073709551615 134929482 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19528/statm: 20382 19646 203 467 0 19913 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 81528

[startup+2.5017 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 19529
/proc/meminfo: memFree=1745176/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=78532 CPUtime=2.49
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 20855 0 0 0 242 7 0 0 25 0 1 0 12196801 80416768 19002 1992294400 134512640 136421960 4286845152 18446744073709551615 135805485 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19528/statm: 19633 19002 236 467 0 19164 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 78532

[startup+2.60171 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 19529
/proc/meminfo: memFree=1745176/2059040 swapFree=4192956/4192956
[pid=19528] ppid=19526 vsize=78532 CPUtime=2.59
/proc/19528/stat : 19528 (pbct) R 19526 19528 17871 0 -1 4202496 20855 0 0 0 252 7 0 0 25 0 1 0 12196801 80416768 19002 1992294400 134512640 136421960 4286845152 18446744073709551615 135818225 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19528/statm: 19633 19002 236 467 0 19164 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 78532

Child status: 0
Real time (s): 2.67809
CPU time (s): 2.67759
CPU user time (s): 2.58961
CPU system time (s): 0.087986
CPU usage (%): 99.9814
Max. virtual memory (cumulated for all children) (KiB): 81528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.58961
system time used= 0.087986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20856
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= 10

runsolver used 0.005999 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node018 at 2010-07-06 20:10:45
IDJOB=2685129
IDBENCH=74647
IDSOLVER=1192
FILE ID=node018/2685129-1278439845
PBS_JOBID= 11233454
Free space on /tmp= 62520 MiB

SOLVER NAME= PB/CT 0.1 fixed
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-2685129-1278439845/watcher-2685129-1278439845 -o /tmp/evaluation-result-2685129-1278439845/solver-2685129-1278439845 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685129-1278439845.opb

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

MD5SUM BENCH= e27627ae64f743135eba4ae37b0b2df0
RANDOM SEED=1806710179

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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:       1809820 kB
Buffers:          8116 kB
Cached:         107796 kB
SwapCached:          0 kB
Active:          99768 kB
Inactive:        76404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1809820 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3756 kB
Writeback:           0 kB
AnonPages:       60252 kB
Mapped:          14416 kB
Slab:            51064 kB
PageTables:       4116 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180284 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= 62516 MiB
End job on node018 at 2010-07-06 20:10:48