Trace number 318414

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
MXC 2007-02-08UNSAT 2.02969 2.04347

General information on the benchmark

Nameindustrial/babic/dspam/
dspam_dump_vc950.cnf
MD5SUM36e67e1ba9821e3da23147686112d6b9
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.07883
Satisfiable
(Un)Satisfiability was proved
Number of variables112784
Number of clauses360419
Sum of the clauses size955179
Maximum clause length3
Minimum clause length1
Number of clauses of size 13092
Number of clauses of size 2119894
Number of clauses of size 3237433
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

1.99/2.03	c MXC attempting /tmp/evaluation/318414-1176318249/instance-318414-1176318249.cnf
1.99/2.03	c 3629 assignments made, starting to guess now
1.99/2.03	c ===================================[MXC]=====================================
1.99/2.03	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
1.99/2.03	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
1.99/2.03	c =============================================================================
1.99/2.03	c |         0 |  236975   710925 |   78991       0       0     nan |  3.216 % |
1.99/2.03	c |       100 |  236975   710925 |   86890      35    2073    59.2 |  3.216 % |
1.99/2.03	c |       250 |  236322   708966 |   95579     161   11574    71.9 |  3.284 % |
1.99/2.03	c |       475 |  235788   707364 |  105137     379   17898    47.2 |  3.289 % |
1.99/2.03	c |       812 |  235788   707364 |  115650     713   24857    34.9 |  3.289 % |
1.99/2.03	c |      1318 |  233994   701982 |  127215    1195   33799    28.3 |  3.660 % |
1.99/2.03	c 2.020s elapsed
1.99/2.03	c restarts: 5
1.99/2.03	c decisions: 20961
1.99/2.03	c propagations: 3107894
1.99/2.03	c conflicts: 1345
1.99/2.03	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/node75/watcher-318414-1176318249 -o ROOT/results/node75/solver-318414-1176318249 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318414-1176318249/mxc /tmp/evaluation/318414-1176318249/instance-318414-1176318249.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 0.96 0.90 3/64 8959
/proc/meminfo: memFree=1268760/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=7728 CPUtime=0
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 743 0 0 0 0 0 0 0 18 0 1 0 79738796 7913472 728 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 1932 732 42 122 0 1806 0

[startup+0.0704159 s]
/proc/loadavg: 0.92 0.96 0.90 3/64 8959
/proc/meminfo: memFree=1268760/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=22408 CPUtime=0.06
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 4903 0 0 0 4 2 0 0 18 0 1 0 79738796 22945792 4887 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 5602 4887 46 122 0 5476 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 22408

[startup+0.101421 s]
/proc/loadavg: 0.92 0.96 0.90 3/64 8959
/proc/meminfo: memFree=1268760/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=24512 CPUtime=0.09
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 5373 0 0 0 7 2 0 0 18 0 1 0 79738796 25100288 5357 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6128 5358 46 122 0 6002 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 24512

[startup+0.301461 s]
/proc/loadavg: 0.92 0.96 0.90 3/64 8959
/proc/meminfo: memFree=1268760/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=25752 CPUtime=0.3
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 7447 0 0 0 26 4 0 0 19 0 1 0 79738796 26370048 5732 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6438 5732 57 122 0 6312 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 25752

[startup+0.701541 s]
/proc/loadavg: 0.92 0.96 0.90 3/64 8959
/proc/meminfo: memFree=1268760/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=26544 CPUtime=0.69
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 7632 0 0 0 65 4 0 0 23 0 1 0 79738796 27181056 5917 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134534259 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6636 5917 59 122 0 6510 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 26544

[startup+1.5017 s]
/proc/loadavg: 0.92 0.96 0.90 2/65 8960
/proc/meminfo: memFree=1245008/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=26808 CPUtime=1.49
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 7705 0 0 0 145 4 0 0 25 0 1 0 79738796 27451392 5990 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6702 5990 59 122 0 6576 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26808

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

[startup+1.90178 s]
/proc/loadavg: 0.92 0.96 0.90 2/65 8960
/proc/meminfo: memFree=1245008/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=26808 CPUtime=1.89
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 7706 0 0 0 185 4 0 0 25 0 1 0 79738796 27451392 5991 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134528229 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6702 5991 59 122 0 6576 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 26808

[startup+2.0018 s]
/proc/loadavg: 0.92 0.96 0.90 2/65 8960
/proc/meminfo: memFree=1245008/2055920 swapFree=4191892/4192956
[pid=8959] ppid=8957 vsize=26808 CPUtime=1.99
/proc/8959/stat : 8959 (mxc) R 8957 8959 8415 0 -1 4194304 7707 0 0 0 195 4 0 0 25 0 1 0 79738796 27451392 5992 18446744073709551615 134512640 135013041 4294956608 18446744073709551615 134534110 0 0 4096 0 0 0 0 17 1 0 0
/proc/8959/statm: 6702 5992 59 122 0 6576 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 26808

Child status: 20
Real time (s): 2.04347
CPU time (s): 2.02969
CPU user time (s): 1.9837
CPU system time (s): 0.045993
CPU usage (%): 99.3256
Max. virtual memory (cumulated for all children) (KiB): 30304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9837
system time used= 0.045993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7713
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= 9
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Wed Apr 11 19:04:09 UTC 2007

IDJOB= 318414
IDBENCH= 20454
IDSOLVER= 107
FILE ID= node75/318414-1176318249

PBS_JOBID= 4516689

Free space on /tmp= 66557 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/dspam/dspam_dump_vc950.cnf
COMMAND LINE= /tmp/evaluation/318414-1176318249/mxc /tmp/evaluation/318414-1176318249/instance-318414-1176318249.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-318414-1176318249 -o ROOT/results/node75/solver-318414-1176318249 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318414-1176318249/mxc /tmp/evaluation/318414-1176318249/instance-318414-1176318249.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  36e67e1ba9821e3da23147686112d6b9

RANDOM SEED= 844746454

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.257
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		: 3000.257
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1269104 kB
Buffers:         38604 kB
Cached:         557352 kB
SwapCached:        268 kB
Active:         120472 kB
Inactive:       490524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1269104 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            7384 kB
Writeback:           0 kB
Mapped:          24672 kB
Slab:           161692 kB
Committed_AS:   112588 kB
PageTables:       1432 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= 66557 MiB

End job on node75 on Wed Apr 11 19:04:11 UTC 2007