Trace number 308861

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
KCNFS 2006UNSAT 86.5608 86.5793

General information on the benchmark

Namerandom/2+p/p0.7/v4500/
unif2p-p0.7-v4500-c12015-S1293761391-11-UNSAT.cnf
MD5SUMbd48c0af40579fae130a490637a0c778
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark81.1437
Satisfiable
(Un)Satisfiability was proved
Number of variables4497
Number of clauses12014
Sum of the clauses size32438
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 23604
Number of clauses of size 38410
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	
0.00/0.00	c Computed by /tmp/evaluation/308861-1172529879/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.02	c Input file : '/tmp/evaluation/308861-1172529879/instance-308861-1172529879.cnf'
0.00/0.02	c [#vars: 4500, #clauses: 12014 , (2-3)-CNF]
0.00/0.03	c unit clauses propagate before processing (#clause: 12014)
86.53/86.57	c BSH-propagate until depth 1 (fix point: 6 updates) 
86.53/86.57	s UNSATISFIABLE
86.53/86.57	c Computation time     : 86.540 seconds
86.53/86.57	c Execution time       : 86.560 seconds
86.53/86.57	c Size of search tree  : 11980 nodes
86.53/86.57	c average speed        : 138.433 nodes/sec.
86.53/86.57

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node29/watcher-308861-1172529879 -o ROOT/results/node29/solver-308861-1172529879 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308861-1172529879/kcnfs-2006 /tmp/evaluation/308861-1172529879/instance-308861-1172529879.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.99 0.99 3/77 17377
/proc/meminfo: memFree=1925336/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=180908 CPUtime=0
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 246752200 185249792 113 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45227 113 47 158 0 45067 0

[startup+0.107295 s]
/proc/loadavg: 0.92 0.99 0.99 3/77 17377
/proc/meminfo: memFree=1925336/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182492 CPUtime=0.1
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1171 0 0 0 10 0 0 0 18 0 1 0 246752200 186871808 1155 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134736322 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45623 1155 58 158 0 45463 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182492

[startup+0.51532 s]
/proc/loadavg: 0.92 0.99 0.99 3/77 17377
/proc/meminfo: memFree=1925336/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=0.5
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1202 0 0 0 50 0 0 0 21 0 1 0 246752200 187351040 1186 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569083 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1186 68 158 0 45580 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 182960

[startup+1.33537 s]
/proc/loadavg: 0.92 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920656/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=1.32
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1203 0 0 0 132 0 0 0 25 0 1 0 246752200 187351040 1187 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559349 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1187 68 158 0 45580 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 182960

[startup+2.97147 s]
/proc/loadavg: 0.93 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920528/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=2.96
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1208 0 0 0 296 0 0 0 25 0 1 0 246752200 187351040 1192 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559576 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1192 70 158 0 45580 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 182960

[startup+6.24968 s]
/proc/loadavg: 0.93 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=6.24
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1208 0 0 0 624 0 0 0 25 0 1 0 246752200 187351040 1192 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569618 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1192 70 158 0 45580 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 182960

[startup+12.7051 s]
/proc/loadavg: 0.94 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=12.69
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1209 0 0 0 1269 0 0 0 25 0 1 0 246752200 187351040 1193 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564818 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1193 70 158 0 45580 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 182960

[startup+25.5129 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=25.5
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1209 0 0 0 2549 1 0 0 25 0 1 0 246752200 187351040 1193 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569616 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1193 70 158 0 45580 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 182960

[startup+51.1225 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=51.1
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 5109 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564260 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 182960

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

[startup+52.4526 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=52.43
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 5242 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564607 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 52.43
Current children cumulated vsize (KiB) 182960

[startup+65.5614 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920472/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=65.54
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 6553 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559186 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 65.54
Current children cumulated vsize (KiB) 182960

[startup+78.6742 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=78.65
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 7864 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564823 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 78.65
Current children cumulated vsize (KiB) 182960

[startup+81.9504 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=81.92
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8191 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559186 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 81.92
Current children cumulated vsize (KiB) 182960

[startup+83.5945 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=83.56
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8355 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134581637 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 83.56
Current children cumulated vsize (KiB) 182960

[startup+85.2326 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=85.2
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8519 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134621371 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 85.2
Current children cumulated vsize (KiB) 182960

[startup+86.0527 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=86.02
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8601 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134559489 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 86.02
Current children cumulated vsize (KiB) 182960

[startup+86.4607 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=86.43
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8642 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564605 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 86.43
Current children cumulated vsize (KiB) 182960

[startup+86.5627 s]
/proc/loadavg: 0.98 0.99 0.99 2/78 17378
/proc/meminfo: memFree=1920408/2055920 swapFree=4143364/4192956
[pid=17377] ppid=17375 vsize=182960 CPUtime=86.53
/proc/17377/stat : 17377 (kcnfs-2006) R 17375 17377 17314 0 -1 4194304 1210 0 0 0 8652 1 0 0 25 0 1 0 246752200 187351040 1194 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564747 0 0 4096 0 0 0 0 17 1 0 0
/proc/17377/statm: 45740 1194 70 158 0 45580 0
Current children cumulated CPU time (s) 86.53
Current children cumulated vsize (KiB) 182960

Child status: 20
Real time (s): 86.5793
CPU time (s): 86.5608
CPU user time (s): 86.5418
CPU system time (s): 0.018997
CPU usage (%): 99.9787
Max. virtual memory (cumulated for all children) (KiB): 182960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.5418
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1220
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= 7
involuntary context switches= 72

runsolver used 0.092985 second user time and 0.218966 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Mon Feb 26 22:44:40 UTC 2007

IDJOB= 308861
IDBENCH= 20243
IDSOLVER= 113
FILE ID= node29/308861-1172529879

PBS_JOBID= 3971814

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v4500/unif2p-p0.7-v4500-c12015-S1293761391-11-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/308861-1172529879/kcnfs-2006 /tmp/evaluation/308861-1172529879/instance-308861-1172529879.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-308861-1172529879 -o ROOT/results/node29/solver-308861-1172529879 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308861-1172529879/kcnfs-2006 /tmp/evaluation/308861-1172529879/instance-308861-1172529879.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  bd48c0af40579fae130a490637a0c778

RANDOM SEED= 700305249

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.209
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	: 5931.00
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		: 3000.209
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:       1925808 kB
Buffers:         17980 kB
Cached:          52404 kB
SwapCached:      17472 kB
Active:          57256 kB
Inactive:        41440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1925808 kB
SwapTotal:     4192956 kB
SwapFree:      4143364 kB
Dirty:            3512 kB
Writeback:           0 kB
Mapped:          29440 kB
Slab:            16884 kB
Committed_AS:   698656 kB
PageTables:       1864 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= 66561 MiB

End job on node29 on Mon Feb 26 22:46:06 UTC 2007