Trace number 2682721

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 1.49377 1.49417

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.249961
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.09/0.20	c constraints 780/0 clauses 17268/0 units 4
0.09/0.20	c vars 6392
1.09/1.14	c 1.06184 82.5 670 3048
1.39/1.48	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-2682721-1277476526/watcher-2682721-1277476526 -o /tmp/evaluation-result-2682721-1277476526/solver-2682721-1277476526 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682721-1277476526.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 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=2136 CPUtime=0
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 246 0 0 0 0 0 0 0 20 0 1 0 123256587 2187264 166 1992294400 134512640 136421960 4293725872 18446744073709551615 135372694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30532/statm: 534 166 144 467 0 65 0

[startup+0.100469 s]
/proc/loadavg: 0.99 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=2532 CPUtime=0.09
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 331 0 0 0 9 0 0 0 20 0 1 0 123256587 2592768 251 1992294400 134512640 136421960 4293725872 18446744073709551615 135161652 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30532/statm: 633 251 144 467 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

[startup+0.200479 s]
/proc/loadavg: 0.99 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=4108 CPUtime=0.19
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 629 0 0 0 19 0 0 0 20 0 1 0 123256587 4206592 550 1992294400 134512640 136421960 4293725872 18446744073709551615 134786032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30532/statm: 1027 560 172 467 0 558 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4108

[startup+0.300489 s]
/proc/loadavg: 0.99 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=15836 CPUtime=0.29
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 3629 0 0 0 29 0 0 0 20 0 1 0 123256587 16216064 3549 1992294400 134512640 136421960 4293725872 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30532/statm: 3959 3550 187 467 0 3490 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15836

[startup+0.70053 s]
/proc/loadavg: 0.99 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=47868 CPUtime=0.69
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 12225 0 0 0 65 4 0 0 21 0 1 0 123256587 49016832 11570 1992294400 134512640 136421960 4293725872 18446744073709551615 136044366 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30532/statm: 12000 11571 193 467 0 11531 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 47868

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

[startup+0.800539 s]
/proc/loadavg: 0.99 0.94 0.59 2/106 30532
/proc/meminfo: memFree=1771220/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=76464 CPUtime=0.79
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 19568 0 0 0 72 7 0 0 21 0 1 0 123256587 78299136 18328 1992294400 134512640 136421960 4293725872 18446744073709551615 134729682 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30532/statm: 19116 18328 194 467 0 18647 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 76464

[startup+1.20858 s]
/proc/loadavg: 0.99 0.94 0.59 2/107 30533
/proc/meminfo: memFree=1691852/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=81160 CPUtime=1.19
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 21619 0 0 0 112 7 0 0 22 0 1 0 123256587 83107840 19443 1992294400 134512640 136421960 4293725872 18446744073709551615 134654884 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30532/statm: 20290 19443 237 467 0 19821 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 81160

[startup+1.4006 s]
/proc/loadavg: 0.99 0.94 0.59 2/107 30533
/proc/meminfo: memFree=1691852/2059040 swapFree=4135576/4192956
[pid=30532] ppid=30530 vsize=78872 CPUtime=1.39
/proc/30532/stat : 30532 (pbct) R 30530 30532 30159 0 -1 4202496 21619 0 0 0 132 7 0 0 22 0 1 0 123256587 80764928 18980 1992294400 134512640 136421960 4293725872 18446744073709551615 135801268 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30532/statm: 19718 18980 237 467 0 19249 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 78872

Child status: 0
Real time (s): 1.49417
CPU time (s): 1.49377
CPU user time (s): 1.40579
CPU system time (s): 0.087986
CPU usage (%): 99.9736
Max. virtual memory (cumulated for all children) (KiB): 84476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40579
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= 21620
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= 19

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-25 16:35:26
IDJOB=2682721
IDBENCH=1478
IDSOLVER=1192
FILE ID=node002/2682721-1277476526
PBS_JOBID= 11190533
Free space on /tmp= 62412 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682721-1277476526/watcher-2682721-1277476526 -o /tmp/evaluation-result-2682721-1277476526/solver-2682721-1277476526 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682721-1277476526.opb

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

MD5SUM BENCH= d30cbdfbaf2c404a9c4e9217e33c734d
RANDOM SEED=582731247

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:       1771740 kB
Buffers:         38060 kB
Cached:         149112 kB
SwapCached:       9840 kB
Active:          68956 kB
Inactive:       131096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1771740 kB
SwapTotal:     4192956 kB
SwapFree:      4135576 kB
Dirty:            2580 kB
Writeback:           0 kB
AnonPages:       11600 kB
Mapped:           8348 kB
Slab:            65296 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181176 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= 62408 MiB
End job on node002 at 2010-06-25 16:35:28