Trace number 316097

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
SAT7 2007-02-08UNSAT 6.43702 6.4413

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65375
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting solver ...
0.00/0.00	c Restarting after 101 conflicts
0.00/0.00	c Restarting after 252 conflicts
0.00/0.01	c Restarting after 479 conflicts
0.00/0.02	c Restarting after 816 conflicts
0.00/0.03	c Restarting after 1322 conflicts
0.00/0.04	c Restarting after 2082 conflicts
0.00/0.07	c Restarting after 3223 conflicts
0.09/0.11	c Restarting after 4931 conflicts
0.09/0.16	c Restarting after 7494 conflicts
0.19/0.25	c Restarting after 11339 conflicts
0.29/0.38	c Restarting after 17105 conflicts
0.49/0.58	c Restarting after 25754 conflicts
0.79/0.87	c Restarting after 38729 conflicts
1.29/1.31	c Restarting after 58190 conflicts
1.89/2.00	c Restarting after 87382 conflicts
2.99/3.03	c Restarting after 131171 conflicts
4.49/4.55	c Restarting after 196857 conflicts
6.39/6.43	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-316097-1172664182 -o ROOT/results/node11/solver-316097-1172664182 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316097-1172664182/sat7_bin /tmp/evaluation/316097-1172664182/instance-316097-1172664182.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.92 0.98 0.99 3/77 28829
/proc/meminfo: memFree=1770936/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=0
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 286372771 1093632 115 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134528501 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 115 95 220 0 44 0

[startup+0.083077 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28829
/proc/meminfo: memFree=1770936/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=0.08
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 136 0 0 0 8 0 0 0 18 0 1 0 286372771 1093632 119 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134536713 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 119 95 220 0 44 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1068

[startup+0.101067 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28829
/proc/meminfo: memFree=1770936/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=0.09
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 136 0 0 0 9 0 0 0 18 0 1 0 286372771 1093632 119 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134532512 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 119 95 220 0 44 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1068

[startup+0.301091 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28829
/proc/meminfo: memFree=1770936/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=0.29
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 139 0 0 0 29 0 0 0 19 0 1 0 286372771 1093632 122 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 135029306 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 122 95 220 0 44 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1068

[startup+0.701138 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28829
/proc/meminfo: memFree=1770936/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=0.69
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 141 0 0 0 69 0 0 0 22 0 1 0 286372771 1093632 124 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134579237 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 124 95 220 0 44 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1068

[startup+1.50123 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 28830
/proc/meminfo: memFree=1770736/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=1.49
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 145 0 0 0 149 0 0 0 25 0 1 0 286372771 1093632 128 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134536834 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 128 95 220 0 44 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1068

[startup+3.10142 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 28830
/proc/meminfo: memFree=1770608/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=3.09
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 149 0 0 0 309 0 0 0 25 0 1 0 286372771 1093632 132 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134532571 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 132 95 220 0 44 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1068

[startup+6.3018 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 28830
/proc/meminfo: memFree=1770544/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=6.29
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 154 0 0 0 629 0 0 0 25 0 1 0 286372771 1093632 137 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134532433 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 137 95 220 0 44 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1068

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

[startup+6.40181 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 28830
/proc/meminfo: memFree=1770544/2055920 swapFree=4192812/4192956
[pid=28829] ppid=28827 vsize=1068 CPUtime=6.39
/proc/28829/stat : 28829 (sat7_bin) R 28827 28829 27137 0 -1 4194304 154 0 0 0 639 0 0 0 25 0 1 0 286372771 1093632 137 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134532835 0 0 4096 0 0 0 0 17 1 0 0
/proc/28829/statm: 267 137 95 220 0 44 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 1068

Child status: 20
Real time (s): 6.4413
CPU time (s): 6.43702
CPU user time (s): 6.43702
CPU system time (s): 0
CPU usage (%): 99.9336
Max. virtual memory (cumulated for all children) (KiB): 1068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.43702
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 155
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= 16

runsolver used 0.010998 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Wed Feb 28 12:03:02 UTC 2007

IDJOB= 316097
IDBENCH= 20433
IDSOLVER= 101
FILE ID= node11/316097-1172664182

PBS_JOBID= 3980954

Free space on /tmp= 66544 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/316097-1172664182/sat7_bin /tmp/evaluation/316097-1172664182/instance-316097-1172664182.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-316097-1172664182 -o ROOT/results/node11/solver-316097-1172664182 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316097-1172664182/sat7_bin /tmp/evaluation/316097-1172664182/instance-316097-1172664182.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 439292246

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.243
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		: 3000.243
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:       1771344 kB
Buffers:         13936 kB
Cached:         158036 kB
SwapCached:          0 kB
Active:          60496 kB
Inactive:       170132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1771344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1392 kB
Writeback:           0 kB
Mapped:          77588 kB
Slab:            39416 kB
Committed_AS:   886896 kB
PageTables:       1820 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= 66544 MiB

End job on node11 on Wed Feb 28 12:03:09 UTC 2007