Trace number 316262

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
picosat 535UNSAT 8.5437 8.54793

General information on the benchmark

Namecrafted/spence/
medium/s57-100.cnf
MD5SUM4dc4c11d420a4a03c2a3fdf77861be5d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.703892
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of clauses124
Sum of the clauses size372
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3124
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

8.49/8.54	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/node3/watcher-316262-1172666481 -o ROOT/results/node3/solver-316262-1172666481 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316262-1172666481/picosat /tmp/evaluation/316262-1172666481/instance-316262-1172666481.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: 1.04 1.02 1.00 3/77 10572
/proc/meminfo: memFree=1109416/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=568 CPUtime=0
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 73 0 0 0 0 0 0 0 18 0 1 0 286602936 581632 58 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 142 58 42 102 0 37 0

[startup+0.0621071 s]
/proc/loadavg: 1.04 1.02 1.00 3/77 10572
/proc/meminfo: memFree=1109416/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=576 CPUtime=0.06
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 104 0 0 0 6 0 0 0 18 0 1 0 286602936 589824 87 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525921 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 144 87 48 102 0 39 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 576

[startup+0.10111 s]
/proc/loadavg: 1.04 1.02 1.00 3/77 10572
/proc/meminfo: memFree=1109416/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=576 CPUtime=0.09
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 104 0 0 0 9 0 0 0 18 0 1 0 286602936 589824 87 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 144 87 48 102 0 39 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 576

[startup+0.301126 s]
/proc/loadavg: 1.04 1.02 1.00 3/77 10572
/proc/meminfo: memFree=1109416/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=704 CPUtime=0.29
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 112 0 0 0 29 0 0 0 19 0 1 0 286602936 720896 95 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134529604 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 176 95 48 102 0 71 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 704

[startup+0.70116 s]
/proc/loadavg: 1.04 1.02 1.00 3/77 10572
/proc/meminfo: memFree=1109416/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=704 CPUtime=0.69
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 123 0 0 0 69 0 0 0 22 0 1 0 286602936 720896 106 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 176 106 48 102 0 71 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 704

[startup+1.50122 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1109088/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=824 CPUtime=1.49
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 138 0 0 0 149 0 0 0 25 0 1 0 286602936 843776 121 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 206 121 48 102 0 101 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 824

[startup+3.10136 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1108896/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=824 CPUtime=3.09
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 154 0 0 0 309 0 0 0 25 0 1 0 286602936 843776 137 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525794 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 206 137 48 102 0 101 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 824

[startup+6.30162 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1108704/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=968 CPUtime=6.29
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 179 0 0 0 629 0 0 0 25 0 1 0 286602936 991232 162 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 242 162 48 102 0 137 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 968

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

[startup+7.90175 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1108640/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=968 CPUtime=7.89
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 187 0 0 0 789 0 0 0 25 0 1 0 286602936 991232 170 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 242 170 48 102 0 137 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 968

[startup+8.30178 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1108640/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=968 CPUtime=8.29
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 187 0 0 0 829 0 0 0 25 0 1 0 286602936 991232 170 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 242 170 48 102 0 137 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 968

[startup+8.5018 s]
/proc/loadavg: 1.03 1.02 1.00 2/78 10573
/proc/meminfo: memFree=1108640/2055920 swapFree=4191880/4192956
[pid=10572] ppid=10570 vsize=968 CPUtime=8.49
/proc/10572/stat : 10572 (picosat) R 10570 10572 10423 0 -1 4194304 187 0 0 0 849 0 0 0 25 0 1 0 286602936 991232 170 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/10572/statm: 242 170 48 102 0 137 0
Current children cumulated CPU time (s) 8.49
Current children cumulated vsize (KiB) 968

Child status: 20
Real time (s): 8.54793
CPU time (s): 8.5437
CPU user time (s): 8.5427
CPU system time (s): 0.000999
CPU usage (%): 99.9506
Max. virtual memory (cumulated for all children) (KiB): 968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.5427
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 189
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= 5

runsolver used 0.010998 second user time and 0.026995 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Feb 28 12:41:21 UTC 2007

IDJOB= 316262
IDBENCH= 20437
IDSOLVER= 106
FILE ID= node3/316262-1172666481

PBS_JOBID= 3980963

Free space on /tmp= 66536 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/316262-1172666481/picosat /tmp/evaluation/316262-1172666481/instance-316262-1172666481.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-316262-1172666481 -o ROOT/results/node3/solver-316262-1172666481 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316262-1172666481/picosat /tmp/evaluation/316262-1172666481/instance-316262-1172666481.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 920390739

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:       1109824 kB
Buffers:         45520 kB
Cached:         777172 kB
SwapCached:        448 kB
Active:         291224 kB
Inactive:       585464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1109824 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:             488 kB
Writeback:           0 kB
Mapped:          64016 kB
Slab:            55096 kB
Committed_AS:  1269168 kB
PageTables:       1656 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= 66536 MiB

End job on node3 on Wed Feb 28 12:41:29 UTC 2007