Trace number 1723732

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
HydraSAT-Flat 2009-03-22-FlatUNSAT 2.18667 2.18805

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 benchmark0.883865
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 

2.09/2.18	
2.09/2.18	c decisions : 159848
2.09/2.18	c conflicts : 17381
2.09/2.18	c Memory limit 1620 MiB
2.09/2.18	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-1723732-1240688392/watcher-1723732-1240688392 -o /tmp/evaluation-result-1723732-1240688392/solver-1723732-1240688392 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat-flat HOME/instance-1723732-1240688392.cnf -rs 2024556394 -co memory_limit 1800 

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): 1800 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: 1.23 1.19 1.08 3/65 18963
/proc/meminfo: memFree=1723992/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=1872 CPUtime=0
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 208 0 0 0 0 0 0 0 21 0 1 0 96869434 1916928 192 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 468 193 119 319 0 146 0

[startup+0.086734 s]
/proc/loadavg: 1.23 1.19 1.08 3/65 18963
/proc/meminfo: memFree=1723992/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=6512 CPUtime=0.08
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 1444 0 0 0 8 0 0 0 21 0 1 0 96869434 6668288 1428 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 1628 1428 125 319 0 1306 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6512

[startup+0.101734 s]
/proc/loadavg: 1.23 1.19 1.08 3/65 18963
/proc/meminfo: memFree=1723992/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=7172 CPUtime=0.09
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 1586 0 0 0 9 0 0 0 21 0 1 0 96869434 7344128 1570 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 1793 1570 125 319 0 1471 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7172

[startup+0.301756 s]
/proc/loadavg: 1.23 1.19 1.08 3/65 18963
/proc/meminfo: memFree=1723992/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=11940 CPUtime=0.29
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 2860 0 0 0 29 0 0 0 23 0 1 0 96869434 12226560 2728 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 2985 2728 128 319 0 2663 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11940

[startup+0.701801 s]
/proc/loadavg: 1.23 1.19 1.08 3/65 18963
/proc/meminfo: memFree=1723992/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=18584 CPUtime=0.69
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 4719 0 0 0 68 1 0 0 25 0 1 0 96869434 19030016 4317 1992294400 134512640 135819388 4294956160 18446744073709551615 134617971 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 4646 4317 147 319 0 4324 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18584

[startup+1.50189 s]
/proc/loadavg: 1.21 1.19 1.08 2/66 18964
/proc/meminfo: memFree=1707024/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=18848 CPUtime=1.49
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 4789 0 0 0 148 1 0 0 25 0 1 0 96869434 19300352 4387 1992294400 134512640 135819388 4294956160 18446744073709551615 134592638 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 4712 4387 147 319 0 4390 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18848

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

[startup+1.90194 s]
/proc/loadavg: 1.21 1.19 1.08 2/66 18964
/proc/meminfo: memFree=1707024/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=19112 CPUtime=1.89
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 4855 0 0 0 188 1 0 0 25 0 1 0 96869434 19570688 4453 1992294400 134512640 135819388 4294956160 18446744073709551615 134603491 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 4778 4453 147 319 0 4456 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 19112

[startup+2.10196 s]
/proc/loadavg: 1.21 1.19 1.08 2/66 18964
/proc/meminfo: memFree=1706320/2055920 swapFree=4192192/4192956
[pid=18963] ppid=18961 vsize=19376 CPUtime=2.09
/proc/18963/stat : 18963 (hydrasat-flat) R 18961 18963 18319 0 -1 4194304 4910 0 0 0 208 1 0 0 25 0 1 0 96869434 19841024 4508 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/18963/statm: 4844 4508 147 319 0 4522 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 19376

Child status: 20
Real time (s): 2.18805
CPU time (s): 2.18667
CPU user time (s): 2.16467
CPU system time (s): 0.021996
CPU usage (%): 99.9369
Max. virtual memory (cumulated for all children) (KiB): 19376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.16467
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4968
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= 3

runsolver used 0.005999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node76 at 2009-04-25 21:39:53
IDJOB=1723732
IDBENCH=71734
IDSOLVER=519
FILE ID=node76/1723732-1240688392
PBS_JOBID= 9186688
Free space on /tmp= 66200 MiB

SOLVER NAME= HydraSAT-Flat 2009-03-22-Flat
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= DIR/hydrasat-flat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723732-1240688392/watcher-1723732-1240688392 -o /tmp/evaluation-result-1723732-1240688392/solver-1723732-1240688392 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat-flat HOME/instance-1723732-1240688392.cnf -rs 2024556394 -co memory_limit 1800

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=2024556394

node76.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		: 3000.220
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		: 3000.220
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1724408 kB
Buffers:         30024 kB
Cached:         240744 kB
SwapCached:        620 kB
Active:         101784 kB
Inactive:       182816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1724408 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:            2660 kB
Writeback:           0 kB
Mapped:          22400 kB
Slab:            32816 kB
Committed_AS:   314096 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= 66200 MiB
End job on node76 at 2009-04-25 21:39:55