Trace number 1831966

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SApperloT baseUNSAT 1.66774 1.66871

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.876865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.59/1.66	
1.59/1.66	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1831966-1242794835/watcher-1831966-1242794835 -o /tmp/evaluation-result-1831966-1242794835/solver-1831966-1242794835 -C 10000 -W 12000 -M 1800 --output-limit 1,128 HOME/SApperloT-base -seed=576924390 HOME/instance-1831966-1242794835.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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 134217728 bytes. The first 1048576 bytes and the last 133169152 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11724
/proc/meminfo: memFree=1728808/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=2752 CPUtime=0
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 405 0 0 0 0 0 0 0 18 0 1 0 307509440 2818048 389 1992294400 134512640 135674940 4294956208 18446744073709551615 135172670 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 688 390 90 283 0 402 0

[startup+0.0768911 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11724
/proc/meminfo: memFree=1728808/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=4864 CPUtime=0.06
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 960 0 0 0 6 0 0 0 18 0 1 0 307509440 4980736 943 1992294400 134512640 135674940 4294956208 18446744073709551615 134564529 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1216 943 98 283 0 930 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4864

[startup+0.101894 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11724
/proc/meminfo: memFree=1728808/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=4864 CPUtime=0.09
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 965 0 0 0 9 0 0 0 18 0 1 0 307509440 4980736 948 1992294400 134512640 135674940 4294956208 18446744073709551615 134550634 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1216 948 98 283 0 930 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4864

[startup+0.30192 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11724
/proc/meminfo: memFree=1728808/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=4996 CPUtime=0.29
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 969 0 0 0 29 0 0 0 19 0 1 0 307509440 5115904 952 1992294400 134512640 135674940 4294956208 18446744073709551615 134571315 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1249 952 98 283 0 963 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4996

[startup+0.701975 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11724
/proc/meminfo: memFree=1728808/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=5392 CPUtime=0.69
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 1088 0 0 0 69 0 0 0 22 0 1 0 307509440 5521408 1071 1992294400 134512640 135674940 4294956208 18446744073709551615 134564285 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1348 1071 98 283 0 1062 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5392

[startup+1.50108 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11725
/proc/meminfo: memFree=1724512/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=6588 CPUtime=1.49
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 1377 0 0 0 149 0 0 0 25 0 1 0 307509440 6746112 1360 1992294400 134512640 135674940 4294956208 18446744073709551615 134565400 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1647 1360 98 283 0 1361 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6588

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

[startup+1.6021 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11725
/proc/meminfo: memFree=1724512/2055920 swapFree=4179968/4192956
[pid=11724] ppid=11722 vsize=6720 CPUtime=1.59
/proc/11724/stat : 11724 (SApperloT-base) R 11722 11724 11569 0 -1 4194304 1390 0 0 0 159 0 0 0 25 0 1 0 307509440 6881280 1373 1992294400 134512640 135674940 4294956208 18446744073709551615 134558663 0 0 4096 0 0 0 0 17 1 0 0
/proc/11724/statm: 1680 1373 98 283 0 1394 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 6720

Child status: 0
Real time (s): 1.66871
CPU time (s): 1.66774
CPU user time (s): 1.65875
CPU system time (s): 0.008998
CPU usage (%): 99.9424
Max. virtual memory (cumulated for all children) (KiB): 6720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.65875
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1395
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= 2
involuntary context switches= 5

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-05-20 06:47:15
IDJOB=1831966
IDBENCH=71734
IDSOLVER=642
FILE ID=node71/1831966-1242794835
PBS_JOBID= 9322423
Free space on /tmp= 66296 MiB

SOLVER NAME= SApperloT base
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/SApperloT-base -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1831966-1242794835/watcher-1831966-1242794835 -o /tmp/evaluation-result-1831966-1242794835/solver-1831966-1242794835 -C 10000 -W 12000 -M 1800 --output-limit 1,128  HOME/SApperloT-base -seed=576924390 HOME/instance-1831966-1242794835.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=576924390

node71.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.236
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		: 3000.236
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:       1729288 kB
Buffers:         41124 kB
Cached:         236572 kB
SwapCached:       7156 kB
Active:          54912 kB
Inactive:       231620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1729288 kB
SwapTotal:     4192956 kB
SwapFree:      4179968 kB
Dirty:            2484 kB
Writeback:           0 kB
Mapped:          14052 kB
Slab:            26044 kB
Committed_AS:   903612 kB
PageTables:       1440 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= 66296 MiB
End job on node71 at 2009-05-20 06:47:16