Trace number 3438954

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
PicoSAT 941SAT 0.004999 0.0757699

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-10-18-sat.cnf
MD5SUM8d1a6057b61b09d4ac0bb88470e901e8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables180
Number of clauses910
Sum of the clauses size3420
Maximum clause length18
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2810
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5100

Solver Data 

0.00/0.07	s SATISFIABLE
0.00/0.07	v -1 2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 13 -14 -15 -16 -17 -18 -19 -20 -21 -22
0.00/0.07	v -23 24 -25 -26 -27 -28 -29 -30 -31 -32 -33 34 -35 -36 -37 -38 -39 -40 -41 -42
0.00/0.07	v -43 -44 45 -46 -47 -48 -49 -50 -51 -52 -53 -54 -55 56 -57 -58 -59 -60 -61 -62
0.00/0.07	v -63 -64 65 -66 -67 -68 -69 -70 -71 -72 73 -74 -75 -76 -77 -78 -79 -80 -81 -82
0.00/0.07	v -83 -84 -85 -86 -87 -88 -89 90 -91 92 -93 -94 -95 -96 -97 -98 -99 -100 -101
0.00/0.07	v -102 -103 104 -105 -106 -107 -108 -109 -110 -111 -112 -113 -114 -115 -116
0.00/0.07	v -117 118 -119 -120 -121 -122 -123 -124 -125 -126 -127 -128 129 -130 131 -132
0.00/0.07	v -133 -134 -135 -136 -137 -138 -139 -140 -141 -142 143 -144 -145 -146 -147
0.00/0.07	v -148 -149 -150 -151 -152 -153 -154 -155 -156 -157 -158 -159 160 -161 -162
0.00/0.07	v -163 -164 -165 -166 167 -168 -169 -170 -171 -172 -173 -174 -175 -176 177 -178
0.00/0.07	v -179 -180 0

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3438954-1306902728/watcher-3438954-1306902728 -o /tmp/evaluation-result-3438954-1306902728/solver-3438954-1306902728 -C 5000 -W 5100 -M 15500 picosat HOME/instance-3438954-1306902728.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.03 1.21 2/549 23494
/proc/meminfo: memFree=7445660/32950928 swapFree=67056580/67111528
[pid=23494] ppid=23492 vsize=11796 CPUtime=0 cores=0,2,4,6
/proc/23494/stat : 23494 (runsolver) D 23492 23494 21730 0 -1 4202560 46 0 0 0 0 0 0 0 21 0 1 0 801869833 12079104 53 33554432000 4194304 5432328 140734456211264 18446744073709551615 5055479 0 0 4096 24578 18446744071562154983 0 0 17 4 0 0 0
/proc/23494/statm: 2949 53 34 303 0 2643 0

[startup+0.034873 s]
/proc/loadavg: 1.00 1.03 1.21 2/549 23494
/proc/meminfo: memFree=7445660/32950928 swapFree=67056580/67111528
[pid=23494] ppid=23492 vsize=1656 CPUtime=0 cores=0,2,4,6
/proc/23494/stat : 23494 (picosat) D 23492 23494 21730 0 -1 4194304 80 0 2 0 0 0 0 0 18 0 1 0 801869833 1695744 37 33554432000 134512640 134603332 4286783232 18446744073709551615 8965287 0 0 4096 0 18446744071562234166 0 0 17 2 0 0 2
/proc/23494/statm: 414 37 30 23 0 24 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1656

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

[startup+0.034873 s]
/proc/loadavg: 1.00 1.03 1.21 2/549 23494
/proc/meminfo: memFree=7445660/32950928 swapFree=67056580/67111528
[pid=23494] ppid=23492 vsize=1656 CPUtime=0 cores=0,2,4,6
/proc/23494/stat : 23494 (picosat) D 23492 23494 21730 0 -1 4194304 80 0 2 0 0 0 0 0 18 0 1 0 801869833 1695744 37 33554432000 134512640 134603332 4286783232 18446744073709551615 8965287 0 0 4096 0 18446744071562234166 0 0 17 2 0 0 2
/proc/23494/statm: 414 37 30 23 0 24 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1656

Child status: 10
Real time (s): 0.0757699
CPU time (s): 0.004999
CPU user time (s): 0.004999
CPU system time (s): 0
CPU usage (%): 6.59761
Max. virtual memory (cumulated for all children) (KiB): 1656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.004999
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 190
page faults= 12
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 78
involuntary context switches= 1

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node148 at 2011-06-01 06:32:08
IDJOB=3438954
IDBENCH=83216
IDSOLVER=1934
FILE ID=node148/3438954-1306902728
RUNJOBID= node148-1306902728-23480
PBS_JOBID= 13488428
Free space on /tmp= 51032 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-10-18-sat.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3438954-1306902728/watcher-3438954-1306902728 -o /tmp/evaluation-result-3438954-1306902728/solver-3438954-1306902728 -C 5000 -W 5100 -M 15500  picosat HOME/instance-3438954-1306902728.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8d1a6057b61b09d4ac0bb88470e901e8
RANDOM SEED=1450236029

node148.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       7445816 kB
Buffers:        106544 kB
Cached:       17815028 kB
SwapCached:       7908 kB
Active:       13984352 kB
Inactive:     10764312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       7445816 kB
SwapTotal:    67111528 kB
SwapFree:     67056580 kB
Dirty:              16 kB
Writeback:           0 kB
AnonPages:     6825148 kB
Mapped:          43028 kB
Slab:           628612 kB
PageTables:      58040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 170358252 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 51032 MiB
End job on node148 at 2011-06-01 06:32:08