Trace number 312503

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 24.4923 24.5124

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-11-u.cnf
MD5SUM770fa9cd880a43d98e936f33f4e86d7a
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark22.0936
Satisfiable
(Un)Satisfiability was proved
Number of variables156980
Number of clauses696581
Sum of the clauses size1582352
Maximum clause length10
Minimum clause length1
Number of clauses of size 113310
Number of clauses of size 2570471
Number of clauses of size 382900
Number of clauses of size 43320
Number of clauses of size 513280
Number of clauses of size over 513300

Solver Data (download as text)

24.48/24.50	c MXC attempting /tmp/evaluation/312503-1176856228/instance-312503-1176856228.cnf
24.48/24.50	c 41543 assignments made, starting to guess now
24.48/24.50	c ===================================[MXC]=====================================
24.48/24.50	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
24.48/24.50	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
24.48/24.50	c =============================================================================
24.48/24.50	c |         0 |   87550   326081 |   29183       0       0     nan | 26.464 % |
24.48/24.50	c |       105 |   79081   289559 |   32101      94   14013   149.1 | 34.341 % |
24.48/24.50	c |       256 |   68245   242431 |   35311     215   17529    81.5 | 44.548 % |
24.48/24.50	c |       481 |   61210   213348 |   38842     395   23300    59.0 | 50.706 % |
24.48/24.50	c |       818 |   34305   115522 |   42726     629   26371    41.9 | 68.757 % |
24.48/24.50	c |      1324 |   33122   111083 |   46999    1124   45464    40.4 | 69.817 % |
24.48/24.50	c |      2085 |   32279   108213 |   51699    1722   85702    49.8 | 70.491 % |
24.48/24.50	c |      3225 |   30533   101751 |   56869    2797  133311    47.7 | 71.986 % |
24.48/24.50	c |      4936 |   30455   101465 |   62556    4501  184126    40.9 | 72.052 % |
24.48/24.50	c |      7499 |   10106    33234 |   68811    4519   98317    21.8 | 87.724 % |
24.48/24.50	c |     11346 |    7614    25497 |   75693    4295   82491    19.2 | 88.974 % |
24.48/24.50	c 24.480s elapsed
24.48/24.50	c restarts: 9
24.48/24.50	c decisions: 29091
24.48/24.50	c propagations: 42750374
24.48/24.50	c conflicts: 11625
24.48/24.50	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node11/watcher-312503-1176856228 -o ROOT/results/node11/solver-312503-1176856228 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312503-1176856228/mxc /tmp/evaluation/312503-1176856228/instance-312503-1176856228.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: 1.03 1.09 1.04 3/77 31041
/proc/meminfo: memFree=1796840/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=12936 CPUtime=0
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 759 0 0 0 0 0 0 0 18 0 1 0 126671739 13246464 743 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 3234 749 42 122 0 3108 0

[startup+0.0827299 s]
/proc/loadavg: 1.03 1.09 1.04 3/77 31041
/proc/meminfo: memFree=1796840/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31604 CPUtime=0.07
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 6977 0 0 0 4 3 0 0 18 0 1 0 126671739 32362496 6961 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7901 6962 46 122 0 7775 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 31604

[startup+0.101731 s]
/proc/loadavg: 1.03 1.09 1.04 3/77 31041
/proc/meminfo: memFree=1796840/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=32264 CPUtime=0.09
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 7172 0 0 0 6 3 0 0 18 0 1 0 126671739 33038336 7156 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 8066 7156 46 122 0 7940 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 32264

[startup+0.301754 s]
/proc/loadavg: 1.03 1.09 1.04 3/77 31041
/proc/meminfo: memFree=1796840/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=39132 CPUtime=0.29
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 8874 0 0 0 25 4 0 0 19 0 1 0 126671739 40071168 8858 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 9783 8858 46 122 0 9657 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 39132

[startup+0.701801 s]
/proc/loadavg: 1.03 1.09 1.04 3/77 31041
/proc/meminfo: memFree=1796840/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=30684 CPUtime=0.69
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 9828 0 0 0 64 5 0 0 23 0 1 0 126671739 31420416 6811 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7671 6811 59 122 0 7545 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 30684

[startup+1.5019 s]
/proc/loadavg: 1.03 1.09 1.04 2/78 31042
/proc/meminfo: memFree=1769760/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=30684 CPUtime=1.49
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 9849 0 0 0 144 5 0 0 25 0 1 0 126671739 31420416 6832 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519297 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7671 6832 59 122 0 7545 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 30684

[startup+3.10109 s]
/proc/loadavg: 1.03 1.09 1.04 2/78 31042
/proc/meminfo: memFree=1769440/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=30684 CPUtime=3.09
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 9864 0 0 0 304 5 0 0 25 0 1 0 126671739 31420416 6847 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519964 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7671 6847 59 122 0 7545 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 30684

[startup+6.30146 s]
/proc/loadavg: 1.03 1.09 1.04 2/78 31042
/proc/meminfo: memFree=1769200/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=30684 CPUtime=6.29
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 9893 0 0 0 623 6 0 0 25 0 1 0 126671739 31420416 6876 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7671 6876 59 122 0 7545 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 30684

[startup+12.7012 s]
/proc/loadavg: 1.03 1.09 1.04 2/78 31042
/proc/meminfo: memFree=1769328/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=30988 CPUtime=12.69
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 9936 0 0 0 1263 6 0 0 25 0 1 0 126671739 31731712 6919 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134531106 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7747 6919 59 122 0 7621 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 30988

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

[startup+19.102 s]
/proc/loadavg: 1.03 1.09 1.04 2/78 31042
/proc/meminfo: memFree=1769072/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31120 CPUtime=19.09
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 10008 0 0 0 1903 6 0 0 25 0 1 0 126671739 31866880 6991 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519651 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7780 6991 59 122 0 7654 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 31120

[startup+22.3014 s]
/proc/loadavg: 1.02 1.08 1.03 2/78 31042
/proc/meminfo: memFree=1769072/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31120 CPUtime=22.28
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 10016 0 0 0 2222 6 0 0 25 0 1 0 126671739 31866880 6999 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7780 6999 59 122 0 7654 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 31120

[startup+23.9015 s]
/proc/loadavg: 1.02 1.08 1.03 2/78 31042
/proc/meminfo: memFree=1769072/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31280 CPUtime=23.88
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 10031 0 0 0 2382 6 0 0 25 0 1 0 126671739 32030720 7014 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7820 7014 59 122 0 7694 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 31280

[startup+24.3016 s]
/proc/loadavg: 1.02 1.08 1.03 2/78 31042
/proc/meminfo: memFree=1769008/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31280 CPUtime=24.28
/proc/31041/stat : 31041 (mxc) R 31039 31041 30126 0 -1 4194304 10031 0 0 0 2422 6 0 0 25 0 1 0 126671739 32030720 7014 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7820 7014 59 122 0 7694 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 31280

[startup+24.5016 s]
/proc/loadavg: 1.02 1.08 1.03 2/78 31042
/proc/meminfo: memFree=1769008/2055920 swapFree=4135768/4192956
[pid=31041] ppid=31039 vsize=31280 CPUtime=24.48
/proc/31041/stat : 31041 (mxc) S 31039 31041 30126 0 -1 4194304 10039 0 0 0 2442 6 0 0 25 0 1 0 126671739 32030720 7022 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/31041/statm: 7820 7022 59 122 0 7694 0
Current children cumulated CPU time (s) 24.48
Current children cumulated vsize (KiB) 31280

Child status: 20
Real time (s): 24.5124
CPU time (s): 24.4923
CPU user time (s): 24.4203
CPU system time (s): 0.071989
CPU usage (%): 99.9179
Max. virtual memory (cumulated for all children) (KiB): 39132

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.4203
system time used= 0.071989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10042
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= 55

runsolver used 0.031995 second user time and 0.06199 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Wed Apr 18 00:30:28 UTC 2007

IDJOB= 312503
IDBENCH= 20343
IDSOLVER= 107
FILE ID= node11/312503-1176856228

PBS_JOBID= 4590186

Free space on /tmp= 66292 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/total-5-11-u.cnf
COMMAND LINE= /tmp/evaluation/312503-1176856228/mxc /tmp/evaluation/312503-1176856228/instance-312503-1176856228.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-312503-1176856228 -o ROOT/results/node11/solver-312503-1176856228 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312503-1176856228/mxc /tmp/evaluation/312503-1176856228/instance-312503-1176856228.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  770fa9cd880a43d98e936f33f4e86d7a

RANDOM SEED= 573168703

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		: 3000.235
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		: 3000.235
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:       1797312 kB
Buffers:         34476 kB
Cached:         141252 kB
SwapCached:      26640 kB
Active:         116264 kB
Inactive:        98652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1797312 kB
SwapTotal:     4192956 kB
SwapFree:      4135768 kB
Dirty:           12676 kB
Writeback:           0 kB
Mapped:          30432 kB
Slab:            29152 kB
Committed_AS:  6135132 kB
PageTables:       1848 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= 66292 MiB

End job on node11 on Wed Apr 18 00:30:53 UTC 2007