Trace number 307963

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
FH 2007-02-08SAT 55.1896 55.2122

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
MD5SUMb44330819e18ebafb103a47668b9fb76
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.829873
Satisfiable
(Un)Satisfiability was proved
Number of variables3499
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

55.08/55.20	c try 1 flip j 33499107
55.08/55.20	c A solution is found
55.08/55.20	s SATISFIABLE
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55.08/55.20	v 0 
55.08/55.20	c Done (mycputime is 0.006 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node6/watcher-307963-1172509935 -o ROOT/results/node6/solver-307963-1172509935 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/307963-1172509935/FH /tmp/evaluation/307963-1172509935/instance-307963-1172509935.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: 0.89 0.97 0.99 3/77 11143
/proc/meminfo: memFree=1575296/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=244720 CPUtime=0
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 270948206 250593280 81 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134605645 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61180 81 36 103 0 60684 0

[startup+0.106715 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 11143
/proc/meminfo: memFree=1575296/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=0.1
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 10 0 0 0 18 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554252 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 247072

[startup+0.514793 s]
/proc/loadavg: 0.89 0.97 0.99 3/77 11143
/proc/meminfo: memFree=1575296/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=0.5
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 50 0 0 0 22 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552027 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 247072

[startup+1.33495 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573368/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=1.32
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 132 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553554 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 247072

[startup+2.97128 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573176/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=2.96
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 296 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554353 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 247072

[startup+6.25192 s]
/proc/loadavg: 0.90 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573048/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=6.24
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 624 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553238 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 247072

[startup+12.7062 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573048/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=12.69
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 1269 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552493 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 247072

[startup+25.5117 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573112/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=25.49
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 2549 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553340 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 247072

[startup+51.1218 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573176/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=51.09
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 5109 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553559 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 247072

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

[startup+52.452 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573176/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=52.42
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 5242 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552484 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 52.42
Current children cumulated vsize (KiB) 247072

[startup+54.0904 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573240/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=54.06
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 5406 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553311 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 54.06
Current children cumulated vsize (KiB) 247072

[startup+54.9115 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573240/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=54.88
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 5488 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553505 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 54.88
Current children cumulated vsize (KiB) 247072

[startup+55.1156 s]
/proc/loadavg: 0.95 0.97 0.99 2/78 11144
/proc/meminfo: memFree=1573240/2055924 swapFree=4192812/4192956
[pid=11143] ppid=11141 vsize=247072 CPUtime=55.08
/proc/11143/stat : 11143 (FH) R 11141 11143 9756 0 -1 4194304 500 0 0 0 5508 0 0 0 25 0 1 0 270948206 253001728 480 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134545981 0 0 4096 0 0 0 0 17 1 0 0
/proc/11143/statm: 61768 480 40 103 0 61272 0
Current children cumulated CPU time (s) 55.08
Current children cumulated vsize (KiB) 247072

Child status: 10
Real time (s): 55.2122
CPU time (s): 55.1896
CPU user time (s): 55.1836
CPU system time (s): 0.005999
CPU usage (%): 99.9591
Max. virtual memory (cumulated for all children) (KiB): 247072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 55.1836
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 513
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= 11
involuntary context switches= 1158

runsolver used 0.055991 second user time and 0.142978 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Mon Feb 26 17:12:15 UTC 2007

IDJOB= 307963
IDBENCH= 20218
IDSOLVER= 117
FILE ID= node6/307963-1172509935

PBS_JOBID= 3971592

Free space on /tmp= 66554 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
COMMAND LINE= /tmp/evaluation/307963-1172509935/FH /tmp/evaluation/307963-1172509935/instance-307963-1172509935.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-307963-1172509935 -o ROOT/results/node6/solver-307963-1172509935 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/307963-1172509935/FH /tmp/evaluation/307963-1172509935/instance-307963-1172509935.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  b44330819e18ebafb103a47668b9fb76

RANDOM SEED= 126706640

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1575768 kB
Buffers:         49204 kB
Cached:         302064 kB
SwapCached:         20 kB
Active:         240788 kB
Inactive:       167952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1575768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6276 kB
Writeback:           0 kB
Mapped:          76352 kB
Slab:            57044 kB
Committed_AS:   890828 kB
PageTables:       1748 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= 66554 MiB

End job on node6 on Mon Feb 26 17:13:10 UTC 2007