Trace number 459037

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_v2 2007-03-23Signal 3.23851 3.24065

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
roussel/normalized-pigeon-clauses-95-90.opb
MD5SUMc091cfcc7e8a81cbf9f64a24634c61f3
Bench CategorySATUNSAT-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables8550
Total number of constraints401945
Number of constraints which are clauses401945
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint90
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 91
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/459037-1178647775/instance-459037-1178647775.opb ......

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/459037-1178647775/instance-459037-1178647775.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-459037-1178647775 -o ROOT/results/node10/solver-459037-1178647775 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459037-1178647775/instance-459037-1178647775.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: 1.01 0.97 0.98 3/77 27476
/proc/meminfo: memFree=1754504/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=2260 CPUtime=0
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 355 0 0 0 0 0 0 0 18 0 1 0 340815133 2314240 337 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135006757 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 565 340 79 219 0 342 0

[startup+0.052359 s]
/proc/loadavg: 1.01 0.97 0.98 3/77 27476
/proc/meminfo: memFree=1754504/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=2948 CPUtime=0.04
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 556 0 0 0 4 0 0 0 18 0 1 0 340815133 3018752 538 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 737 538 86 219 0 514 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2948

[startup+0.101368 s]
/proc/loadavg: 1.01 0.97 0.98 3/77 27476
/proc/meminfo: memFree=1754504/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=3448 CPUtime=0.09
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 667 0 0 0 9 0 0 0 18 0 1 0 340815133 3530752 649 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135063209 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 862 649 86 219 0 639 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3448

[startup+0.301412 s]
/proc/loadavg: 1.01 0.97 0.98 3/77 27476
/proc/meminfo: memFree=1754504/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=5568 CPUtime=0.29
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 1365 0 0 0 28 1 0 0 19 0 1 0 340815133 5701632 1008 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 1392 1008 86 219 0 1169 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5568

[startup+0.701498 s]
/proc/loadavg: 1.01 0.97 0.98 3/77 27476
/proc/meminfo: memFree=1754504/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=10704 CPUtime=0.69
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 2504 0 0 0 68 1 0 0 23 0 1 0 340815133 10960896 1762 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 2676 1762 86 219 0 2453 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10704

[startup+1.50167 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 27477
/proc/meminfo: memFree=1745472/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=19060 CPUtime=1.49
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 4783 0 0 0 146 3 0 0 25 0 1 0 340815133 19517440 3272 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 4765 3272 86 219 0 4542 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19060

[startup+3.10201 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 27477
/proc/meminfo: memFree=1737024/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=35640 CPUtime=3.09
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4194304 9345 0 0 0 304 5 0 0 25 0 1 0 340815133 36495360 6297 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 8910 6297 86 219 0 8687 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 35640

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

[startup+3.20104 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 27477
/proc/meminfo: memFree=1705792/2055920 swapFree=4145576/4192956
[pid=27476] ppid=27474 vsize=39604 CPUtime=3.19
/proc/27476/stat : 27476 (PBS4_SAT07v2) R 27474 27476 26171 0 -1 4195840 11292 0 0 0 305 14 0 0 25 0 1 0 340815133 40554496 7115 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134585806 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27476/statm: 9901 7115 87 219 0 9678 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 39604

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 3.24065
CPU time (s): 3.23851
CPU user time (s): 3.05853
CPU system time (s): 0.179972
CPU usage (%): 99.9338
Max. virtual memory (cumulated for all children) (KiB): 39604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.05854
system time used= 0.179972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11547
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= 9

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue May  8 18:09:36 UTC 2007

IDJOB= 459037
IDBENCH= 2596
IDSOLVER= 200
FILE ID= node10/459037-1178647775

PBS_JOBID= 5217814

Free space on /tmp= 66551 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-clauses-95-90.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459037-1178647775/instance-459037-1178647775.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-459037-1178647775 -o ROOT/results/node10/conversion-459037-1178647775 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459037-1178647775/instance-459037-1178647775.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-459037-1178647775 -o ROOT/results/node10/solver-459037-1178647775 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459037-1178647775/instance-459037-1178647775.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  c091cfcc7e8a81cbf9f64a24634c61f3

RANDOM SEED= 471539256

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.259
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		: 3000.259
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:       1754912 kB
Buffers:         13612 kB
Cached:         166736 kB
SwapCached:      15492 kB
Active:         148284 kB
Inactive:        93020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1754912 kB
SwapTotal:     4192956 kB
SwapFree:      4145576 kB
Dirty:           12596 kB
Writeback:           0 kB
Mapped:          68060 kB
Slab:            45156 kB
Committed_AS:  5233092 kB
PageTables:       1808 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= 66524 MiB

End job on node10 on Tue May  8 18:09:40 UTC 2007