Trace number 199607

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
buggy_2_5_s 2007-01-08SAT 34.5118 34.7823

General information on the benchmark

Namerandom/rand-2-23/
rand-23-23-253-131-53021_ext.xml
MD5SUM5fed53841b4b437c3c9731d111aa34a3
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark14.1279
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables23
Number of constraints253
Maximum constraint arity2
Maximum domain size23
Number of constraints which are defined in extension253
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

SAT
12 13 16 10 20 8 13 13 19 19 12 17 8 0 7 6 20 11 15 21 10 19 9

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node1/watcher-199607-1168286906 -o ROOT/results/node1/solver-199607-1168286906 -C 1800 -M 900 /tmp/evaluation/199607-1168286906/solver2 /tmp/evaluation/199607-1168286906/unknown 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.93 1.99 1.91 5/88 18694
/proc/meminfo: memFree=1313200/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0
/proc/18692/stat : 18692 (solver2) R 18690 18692 12967 0 -1 4194304 279 0 0 0 0 0 0 0 23 0 1 0 177086542 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 4352206 0 65536 4100 65536 0 0 0 17 1 0 0
/proc/18692/statm: 1338 231 193 169 0 49 0
[pid=18693] ppid=18692 vsize=0 CPUtime=0
/proc/18693/stat : 18693 (solver2) R 18692 18692 12967 0 -1 4194372 26 0 0 0 0 0 0 0 23 0 1 0 177086542 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 65538 0 0 0 17 1 0 0
/proc/18693/statm: 0 0 0 0 0 0 0

[startup+0.106701 s]
/proc/loadavg: 1.93 1.99 1.91 5/88 18694
/proc/meminfo: memFree=1313200/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.04
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 376 2235 0 0 0 0 3 1 20 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5352

[startup+0.514749 s]
/proc/loadavg: 1.93 1.99 1.91 5/88 18694
/proc/meminfo: memFree=1313200/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 5352

[startup+1.33584 s]
/proc/loadavg: 1.93 1.99 1.91 3/88 18706
/proc/meminfo: memFree=1311408/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
[pid=18706] ppid=18692 vsize=3496 CPUtime=0.91
/proc/18706/stat : 18706 (standalone) R 18692 18692 12967 0 -1 4194304 354 0 0 0 91 0 0 0 25 0 1 0 177086583 3579904 329 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554240 0 0 4096 0 0 0 0 17 1 0 0
/proc/18706/statm: 874 329 137 64 0 189 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 8848

[startup+2.98704 s]
/proc/loadavg: 1.93 1.99 1.91 3/88 18706
/proc/meminfo: memFree=1311152/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
[pid=18706] ppid=18692 vsize=3496 CPUtime=2.55
/proc/18706/stat : 18706 (standalone) R 18692 18692 12967 0 -1 4194304 354 0 0 0 254 1 0 0 25 0 1 0 177086583 3579904 329 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 135068530 0 0 4096 0 0 0 0 17 1 0 0
/proc/18706/statm: 874 329 137 64 0 189 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 8848

[startup+6.26542 s]
/proc/loadavg: 1.93 1.99 1.91 3/88 18706
/proc/meminfo: memFree=1311216/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
[pid=18706] ppid=18692 vsize=3496 CPUtime=5.8
/proc/18706/stat : 18706 (standalone) R 18692 18692 12967 0 -1 4194304 354 0 0 0 579 1 0 0 25 0 1 0 177086583 3579904 329 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134523704 0 0 4096 0 0 0 0 17 1 0 0
/proc/18706/statm: 874 329 137 64 0 189 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 8848

[startup+12.7322 s]
/proc/loadavg: 1.94 1.99 1.91 4/88 18706
/proc/meminfo: memFree=1311408/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
[pid=18706] ppid=18692 vsize=3496 CPUtime=12.22
/proc/18706/stat : 18706 (standalone) R 18692 18692 12967 0 -1 4194304 354 0 0 0 1221 1 0 0 25 0 1 0 177086583 3579904 329 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554160 0 0 4096 0 0 0 0 17 1 0 0
/proc/18706/statm: 874 329 137 64 0 189 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 8848

[startup+25.5487 s]
/proc/loadavg: 1.95 1.99 1.91 3/88 18706
/proc/meminfo: memFree=1311472/2055920 swapFree=4165612/4192956
[pid=18692] ppid=18690 vsize=5352 CPUtime=0.39
/proc/18692/stat : 18692 (solver2) S 18690 18692 12967 0 -1 4194304 397 2990 0 0 0 0 35 4 15 0 1 0 177086542 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18692/statm: 1338 242 203 169 0 49 0
[pid=18706] ppid=18692 vsize=3496 CPUtime=24.94
/proc/18706/stat : 18706 (standalone) R 18692 18692 12967 0 -1 4194304 354 0 0 0 2493 1 0 0 25 0 1 0 177086583 3579904 329 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 135092939 0 0 4096 0 0 0 0 17 1 0 0
/proc/18706/statm: 874 329 137 64 0 189 0
Current children cumulated CPU time (s) 25.33
Current children cumulated vsize (KiB) 8848

Child status: 0
Real time (s): 34.7823
CPU time (s): 34.5118
CPU user time (s): 34.4498
CPU system time (s): 0.06199
CPU usage (%): 99.2223
Max. virtual memory (cumulated for all children) (KiB): 8848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.4498
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3760
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= 78
involuntary context switches= 778

runsolver used 0.030995 s user time and 0.097985 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Mon Jan  8 20:08:28 UTC 2007


IDJOB= 199607
IDBENCH= 3628
FILE ID= node1/199607-1168286906

PBS_JOBID= 3501692

Free space on /tmp= 66294 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-23/rand-23-23-253-131-53021_ext.xml
COMMAND LINE= /tmp/evaluation/199607-1168286906/solver2 /tmp/evaluation/199607-1168286906/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-199607-1168286906 -o ROOT/results/node1/solver-199607-1168286906 -C 1800 -M 900  /tmp/evaluation/199607-1168286906/solver2 /tmp/evaluation/199607-1168286906/unknown 1800

META MD5SUM SOLVER= 2182e29fee250f6e45b9a85a6429fa3a
MD5SUM BENCH=  5fed53841b4b437c3c9731d111aa34a3

RANDOM SEED= 484178671

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.234
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		: 3000.234
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:       1313880 kB
Buffers:         71064 kB
Cached:         568732 kB
SwapCached:       3620 kB
Active:         326036 kB
Inactive:       354336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1313880 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:           20388 kB
Writeback:           0 kB
Mapped:          51644 kB
Slab:            46232 kB
Committed_AS:  5465928 kB
PageTables:       2332 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= 66293 MiB



End job on node1 on Mon Jan  8 20:09:03 UTC 2007