Trace number 318146

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 SMPUNSAT 1.47478 0.764146

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)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318146-1172765928/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/318146-1172765928/instance-318146-1172765928.cnf'
0.00/0.00	c [#vars: 57, #clauses: 124 -> 124 clauses (pre-processing), tautology: 0, 3-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 124)
0.00/0.00	c estimated distribution: 8 tasks
0.00/0.00	c <17991> [PID]: 17992 17993 17995 17996 17997 17998 17999
0.18/0.20	c <17991> [PID]: 18000
0.18/0.20	c real distribution: 8 tasks
0.38/0.39	c <17991> [17993: UNSAT][17992: UNSAT][17995: UNSAT][17996: UNSAT][17998: UNSAT]
0.72/0.71	c <17991> [17997: UNSAT][17999: UNSAT][18000: UNSAT]
0.72/0.76	s UNSATISFIABLE
0.72/0.76	c CPU time            : 1.430 seconds
0.72/0.76	c Elapsed Time        : 0.762 seconds
0.72/0.76	c Size of search tree : 32048 nodes
0.72/0.76	c average speed       : 22411.189 nodes/sec.
0.72/0.76

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-318146-1172765928 -o ROOT/results/node3/solver-318146-1172765928 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318146-1172765928/kcnfs-smp /tmp/evaluation/318146-1172765928/instance-318146-1172765928.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: 0.02 0.01 0.00 3/77 17991
/proc/meminfo: memFree=1074856/2055920 swapFree=4191880/4192956
[pid=17991] ppid=17989 vsize=182184 CPUtime=0
/proc/17991/stat : 17991 (kcnfs-smp) R 17989 17991 17793 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/17991/statm: 45546 116 68 160 0 45384 0
[pid=17992] ppid=17991 vsize=182184 CPUtime=0
/proc/17992/stat : 17992 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 31 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134567307 0 0 4096 2 0 0 0 17 1 0 0
/proc/17992/statm: 45546 123 73 160 0 45384 0
[pid=17993] ppid=17991 vsize=182184 CPUtime=0
/proc/17993/stat : 17993 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/17993/statm: 45546 116 68 160 0 45384 0

[startup+0.068503 s]
/proc/loadavg: 0.02 0.01 0.00 3/77 17991
/proc/meminfo: memFree=1074856/2055920 swapFree=4191880/4192956
[pid=17991] ppid=17989 vsize=182184 CPUtime=0
/proc/17991/stat : 17991 (kcnfs-smp) R 17989 17991 17793 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/17991/statm: 45546 116 68 160 0 45384 0
[pid=17992] ppid=17991 vsize=182184 CPUtime=0.06
/proc/17992/stat : 17992 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 31 0 0 0 6 0 0 0 19 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134640114 0 0 4096 2 0 0 0 17 1 0 0
/proc/17992/statm: 45546 123 73 160 0 45384 0
[pid=17993] ppid=17991 vsize=182184 CPUtime=0.06
/proc/17993/stat : 17993 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 30 0 0 0 6 0 0 0 20 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134572846 0 0 4096 0 0 0 0 17 0 0 0
/proc/17993/statm: 45546 123 73 160 0 45384 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 546552

[startup+0.102506 s]
/proc/loadavg: 0.02 0.01 0.00 3/77 17991
/proc/meminfo: memFree=1074856/2055920 swapFree=4191880/4192956
[pid=17991] ppid=17989 vsize=182184 CPUtime=0
/proc/17991/stat : 17991 (kcnfs-smp) R 17989 17991 17793 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/17991/statm: 45546 116 68 160 0 45384 0
[pid=17992] ppid=17991 vsize=182184 CPUtime=0.09
/proc/17992/stat : 17992 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 31 0 0 0 9 0 0 0 19 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134577090 0 0 4096 2 0 0 0 17 1 0 0
/proc/17992/statm: 45546 123 73 160 0 45384 0
[pid=17993] ppid=17991 vsize=182184 CPUtime=0.09
/proc/17993/stat : 17993 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 30 0 0 0 9 0 0 0 20 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134639272 0 0 4096 0 0 0 0 17 0 0 0
/proc/17993/statm: 45546 123 73 160 0 45384 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 546552

[startup+0.302522 s]
/proc/loadavg: 0.02 0.01 0.00 3/77 17991
/proc/meminfo: memFree=1074856/2055920 swapFree=4191880/4192956
[pid=17991] ppid=17989 vsize=182184 CPUtime=0
/proc/17991/stat : 17991 (kcnfs-smp) S 17989 17991 17793 0 -1 4194304 275 0 0 0 0 0 0 0 19 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/17991/statm: 45546 116 68 160 0 45384 0
[pid=17992] ppid=17991 vsize=182184 CPUtime=0.2
/proc/17992/stat : 17992 (kcnfs-smp) R 17991 17991 17793 0 -1 4194368 31 0 0 0 20 0 0 0 21 0 1 0 296547686 186556416 123 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134683127 0 0 4096 2 0 0 0 17 0 0 0
/proc/17992/statm: 45546 123 73 160 0 45384 0
[pid=17993] ppid=17991 vsize=0 CPUtime=0.18
/proc/17993/stat : 17993 (kcnfs-smp) R 17991 17991 17793 0 -1 4194372 35 0 0 0 18 0 0 0 22 0 1 0 296547686 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/17993/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 364368

[startup+0.702556 s]
/proc/loadavg: 0.02 0.01 0.00 3/77 17991
/proc/meminfo: memFree=1074856/2055920 swapFree=4191880/4192956
[pid=17991] ppid=17989 vsize=182184 CPUtime=0.72
/proc/17991/stat : 17991 (kcnfs-smp) S 17989 17991 17793 0 -1 4194304 276 141 0 0 0 0 72 0 16 0 1 0 296547686 186556416 116 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17991/statm: 45546 116 68 160 0 45384 0
Current children cumulated CPU time (s) 0.72
Current children cumulated vsize (KiB) 182184

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

Child status: 20
Real time (s): 0.764146
CPU time (s): 1.47478
CPU user time (s): 1.47078
CPU system time (s): 0.003999
CPU usage (%): 192.996
Max. virtual memory (cumulated for all children) (KiB): 546552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.47078
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 572
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= 58
involuntary context switches= 89

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Thu Mar  1 16:18:48 UTC 2007

IDJOB= 318146
IDBENCH= 20437
IDSOLVER= 112
FILE ID= node3/318146-1172765928

PBS_JOBID= 4009740

Free space on /tmp= 66534 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/318146-1172765928/kcnfs-smp /tmp/evaluation/318146-1172765928/instance-318146-1172765928.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-318146-1172765928 -o ROOT/results/node3/solver-318146-1172765928 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318146-1172765928/kcnfs-smp /tmp/evaluation/318146-1172765928/instance-318146-1172765928.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 964118909

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:       1075264 kB
Buffers:         48944 kB
Cached:         808224 kB
SwapCached:        448 kB
Active:         357476 kB
Inactive:       553620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1075264 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            3168 kB
Writeback:           0 kB
Mapped:          63876 kB
Slab:            55216 kB
Committed_AS:  1274376 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= 66534 MiB

End job on node3 on Thu Mar  1 16:18:49 UTC 2007