Trace number 3157049

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
shortsattime2011 2011-03-02SAT 1.89085 1.00643

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v60-c5340-S239039906-021.SATISFIABLE.cnf
MD5SUM3d0491523e951b9423a05375c0461833
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.104983
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55340

Solver Data 

0.89/1.00	c 0 clauses are redundant and removed
0.89/1.00	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.89/1.00	c 0 vars are fixed and 0 clauses are removed after lookahead
0.89/1.00	c initial seed is 1021696250
0.89/1.00	c try=1 flip j=107958 walk=73019 seed 1021696267
0.89/1.00	c A solution is found
0.89/1.00	s SATISFIABLE
0.89/1.00	v 1 -2 -3 4 5 -6 -7 8 -9 -10 -11 -12 -13 14 15 -16 -17 18 -19 20 -21 22 23 -24 25 -26 -27 -28 -29 -30 31 -32 -33 34 35 -36 -37 38 -39 -40 -41 42 43 -44 -45 46 -47 48 49 50 51 52 53 -54 -55 56 -57 -58 -59 -60 
0.89/1.00	v 0 
0.89/1.00	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3157049-1301681222/watcher-3157049-1301681222 -o /tmp/evaluation-result-3157049-1301681222/solver-3157049-1301681222 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157049-1301681222.cnf 1021689463 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1185452 CPUtime=0 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4194304 225 0 0 0 0 0 0 0 25 0 1 0 260537573 1213902848 168 33554432000 4194304 4230460 140735438482896 18446744073709551615 254261616384 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296363 168 100 9 0 293520 0

[startup+0.0349001 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186372 CPUtime=0.03 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 465 0 0 0 3 0 0 0 25 0 1 0 260537573 1214844928 407 33554432000 4194304 4230460 140735438482896 18446744073709551615 4208008 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296593 407 103 9 0 293750 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1186372

[startup+0.100879 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186372 CPUtime=0.09 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 465 0 0 0 9 0 0 0 25 0 1 0 260537573 1214844928 407 33554432000 4194304 4230460 140735438482896 18446744073709551615 4207656 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296593 407 103 9 0 293750 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186372

[startup+0.300853 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186372 CPUtime=0.29 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 465 0 0 0 29 0 0 0 25 0 1 0 260537573 1214844928 407 33554432000 4194304 4230460 140735438482896 18446744073709551615 4207756 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296593 407 103 9 0 293750 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186372

[startup+0.700774 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186640 CPUtime=0.69 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 622 0 0 0 69 0 0 0 25 0 1 0 260537573 1215119360 563 33554432000 4194304 4230460 140735438482896 18446744073709551615 4220864 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296660 563 117 9 0 293817 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1186640

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (0.89 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (0.89 s) to the 'lost time'.

[startup+0.900738 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186640 CPUtime=0.89 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 622 0 0 0 89 0 0 0 25 0 1 0 260537573 1215119360 563 33554432000 4194304 4230460 140735438482896 18446744073709551615 4220179 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296660 563 117 9 0 293817 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 1186640

[startup+1.00072 s]
/proc/loadavg: 3.87 3.97 3.81 5/190 8481
/proc/meminfo: memFree=19882548/32951124 swapFree=67111528/67111528
[pid=8480] ppid=-1 vsize=0 CPUtime=0 cores=
/proc/8480/stat : -- couldn't open stat file --/proc/8480/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+0.900738 s]
/proc/loadavg: 3.87 3.97 3.81 5/189 8480
/proc/meminfo: memFree=19884788/32951124 swapFree=67111528/67111528
[pid=8480] ppid=8478 vsize=1186640 CPUtime=0.89 cores=5,7
/proc/8480/stat : 8480 (shortsattime201) R 8478 8480 7806 0 -1 4202496 622 0 0 0 89 0 0 0 25 0 1 0 260537573 1215119360 563 33554432000 4194304 4230460 140735438482896 18446744073709551615 4220179 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8480/statm: 296660 563 117 9 0 293817 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 1186640

[startup+1.00072 s]
/proc/loadavg: 3.87 3.97 3.81 5/190 8481
/proc/meminfo: memFree=19882548/32951124 swapFree=67111528/67111528
[pid=8480] ppid=-1 vsize=0 CPUtime=0 cores=
/proc/8480/stat : -- couldn't open stat file --/proc/8480/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 10

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 0.89
#  lost CPU user time (s): 0.89
#  lost CPU system time (s): 0

Real time (s): 1.00643
CPU time (s): 1.89085
CPU user time (s): 1.88885
CPU system time (s): 0.001999
CPU usage (%): 187.876
Max. virtual memory (cumulated for all children) (KiB): 1186640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.998848
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 626
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= 1

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-01 20:07:02
IDJOB=3157049
IDBENCH=82764
IDSOLVER=1566
FILE ID=node140/3157049-1301681222
RUNJOBID= node140-1301678138-7827
PBS_JOBID= 12840558
Free space on /tmp= 71328 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k7-r89-v60-c5340-S239039906-021.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157049-1301681222/watcher-3157049-1301681222 -o /tmp/evaluation-result-3157049-1301681222/solver-3157049-1301681222 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157049-1301681222.cnf 1021689463

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 3d0491523e951b9423a05375c0461833
RANDOM SEED=1021689463

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      19884820 kB
Buffers:        352464 kB
Cached:       12328728 kB
SwapCached:          0 kB
Active:        7554264 kB
Inactive:      5232464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19884820 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           16384 kB
Writeback:           0 kB
AnonPages:      105844 kB
Mapped:          15320 kB
Slab:           214332 kB
PageTables:       5772 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3820100 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= 71320 MiB
End job on node140 at 2011-04-01 20:07:04