Trace number 361989

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, and are wall clock time (not CPU 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
PBS4 2007-03-23UNSAT 0.753885 0.754556

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-ooo.rf8.ucl.opb
MD5SUMa985b0d4e6d576e8ad3098d78036fdc8
Bench CategorySATUNSAT-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 benchmark0.753885
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6832
Total number of constraints19477
Number of constraints which are clauses18953
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints524
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 (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/361989-1177005047/instance-361989-1177005047.opb ......
0.69/0.75	c done parsing opb.
0.69/0.75	s UNSATISFIABLE
0.69/0.75	c Total Run Time					0.545917

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/361989-1177005047/instance-361989-1177005047.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node55/watcher-361989-1177005047 -o ROOT/results/node55/solver-361989-1177005047 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/361989-1177005047/PBS4 /tmp/evaluation/361989-1177005047/instance-361989-1177005047.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 10126
/proc/meminfo: memFree=1732596/2055920 swapFree=4184496/4192956
[pid=10126] ppid=10124 vsize=2256 CPUtime=0
/proc/10126/stat : 10126 (PBS4) R 10124 10126 9730 0 -1 4194304 349 0 0 0 0 0 0 0 18 0 1 0 148414706 2310144 331 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135006597 0 0 4096 0 0 0 0 17 1 0 0
/proc/10126/statm: 564 331 87 219 0 341 0

[startup+0.0182371 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 10126
/proc/meminfo: memFree=1732596/2055920 swapFree=4184496/4192956
[pid=10126] ppid=10124 vsize=2256 CPUtime=0.01
/proc/10126/stat : 10126 (PBS4) R 10124 10126 9730 0 -1 4194304 385 0 0 0 1 0 0 0 18 0 1 0 148414706 2310144 367 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/10126/statm: 564 367 87 219 0 341 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2256

[startup+0.101245 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 10126
/proc/meminfo: memFree=1732596/2055920 swapFree=4184496/4192956
[pid=10126] ppid=10124 vsize=3104 CPUtime=0.09
/proc/10126/stat : 10126 (PBS4) R 10124 10126 9730 0 -1 4194304 603 0 0 0 9 0 0 0 18 0 1 0 148414706 3178496 536 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/10126/statm: 776 536 89 219 0 553 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3104

[startup+0.301264 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 10126
/proc/meminfo: memFree=1732596/2055920 swapFree=4184496/4192956
[pid=10126] ppid=10124 vsize=4708 CPUtime=0.29
/proc/10126/stat : 10126 (PBS4) R 10124 10126 9730 0 -1 4194304 994 0 0 0 29 0 0 0 19 0 1 0 148414706 4820992 830 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/10126/statm: 1177 830 94 219 0 954 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4708

[startup+0.701301 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 10126
/proc/meminfo: memFree=1732596/2055920 swapFree=4184496/4192956
[pid=10126] ppid=10124 vsize=5872 CPUtime=0.69
/proc/10126/stat : 10126 (PBS4) R 10124 10126 9730 0 -1 4194304 1151 0 0 0 69 0 0 0 23 0 1 0 148414706 6012928 987 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/10126/statm: 1468 987 94 219 0 1245 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5872

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

Child status: 0
Real time (s): 0.754556
CPU time (s): 0.753885
CPU user time (s): 0.741887
CPU system time (s): 0.011998
CPU usage (%): 99.9111
Max. virtual memory (cumulated for all children) (KiB): 5872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.741887
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1190
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= 8
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Thu Apr 19 17:50:47 UTC 2007

IDJOB= 361989
IDBENCH= 1492
IDSOLVER= 157
FILE ID= node55/361989-1177005047

PBS_JOBID= 4630510

Free space on /tmp= 66354 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.rf8.ucl.opb
COMMAND LINE= /tmp/evaluation/361989-1177005047/PBS4 /tmp/evaluation/361989-1177005047/instance-361989-1177005047.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node55/convwatcher-361989-1177005047 -o ROOT/results/node55/conversion-361989-1177005047 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/361989-1177005047/instance-361989-1177005047.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-361989-1177005047 -o ROOT/results/node55/solver-361989-1177005047 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/361989-1177005047/PBS4 /tmp/evaluation/361989-1177005047/instance-361989-1177005047.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a985b0d4e6d576e8ad3098d78036fdc8

RANDOM SEED= 201732021

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.216
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.216
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1733004 kB
Buffers:         22376 kB
Cached:         226484 kB
SwapCached:       2196 kB
Active:         111560 kB
Inactive:       146920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1733004 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:            1696 kB
Writeback:           0 kB
Mapped:          16176 kB
Slab:            50556 kB
Committed_AS:  1150196 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66354 MiB

End job on node55 on Thu Apr 19 17:50:48 UTC 2007