Trace number 3494941

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
OptimuS a100_source? (exit code) 0.042992 0.043017

General information on the benchmark

Namemus/marques-silva/
atpg/bf1355-228.cnf
MD5SUMfcdfae41aba6a9e12da10a58e1a89961
Bench CategoryMUS (MUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables2298
Number of clauses7307
Sum of the clauses size18552
Maximum clause length6
Minimum clause length1
Number of clauses of size 15
Number of clauses of size 23932
Number of clauses of size 32871
Number of clauses of size 4446
Number of clauses of size 532
Number of clauses of size over 521

Solver Data

0.03/0.04	c - Reading the instance.. OK! Totally clauses:     7307; Vars:     2298; Time: 0.01
0.03/0.04	c - Unit propagation..     OK! Removed clauses:     1341;                 Time: 0.00
0.03/0.04	c - Delete by resolution.. OK! Removed clauses:     5689;                 Time: 0.03
0.03/0.04	c   - Solving the original instance..
0.03/0.04	c     - NOT OK - SAT!! Terminating..
0.03/0.04	s SATISFIABLE
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Verifier Data

ERROR: Unexpected answer ! (UNSATISFIABLE expected)
Got answer: SATISFIABLE

Watcher Data

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 988)

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-3494941-1307808555/watcher-3494941-1307808555 -o /tmp/evaluation-result-3494941-1307808555/solver-3494941-1307808555 -C 1800 -W 1850 -M 7680 OptimuS_release HOME/instance-3494941-1307808555.cnf 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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: 3.29 3.53 3.63 4/189 22213
/proc/meminfo: memFree=29309992/32951124 swapFree=67056964/67111528
[pid=22213] ppid=22211 vsize=20868 CPUtime=0 cores=5,7
/proc/22213/stat : 22213 (OptimuS_release) R 22211 22213 19995 0 -1 4202496 793 0 0 0 0 0 0 0 25 0 1 0 873271367 21368832 728 33554432000 4194304 4279335 140734379960336 18446744073709551615 4221595 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/22213/statm: 5217 728 239 21 0 1854 0

[startup+0.0315241 s]
/proc/loadavg: 3.29 3.53 3.63 4/189 22213
/proc/meminfo: memFree=29309992/32951124 swapFree=67056964/67111528
[pid=22213] ppid=22211 vsize=21552 CPUtime=0.03 cores=5,7
/proc/22213/stat : 22213 (OptimuS_release) R 22211 22213 19995 0 -1 4202496 973 0 0 0 3 0 0 0 25 0 1 0 873271367 22069248 907 33554432000 4194304 4279335 140734379960336 18446744073709551615 4209494 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/22213/statm: 5388 907 250 21 0 2025 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 21552

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

[startup+0.0315241 s]
/proc/loadavg: 3.29 3.53 3.63 4/189 22213
/proc/meminfo: memFree=29309992/32951124 swapFree=67056964/67111528
[pid=22213] ppid=22211 vsize=21552 CPUtime=0.03 cores=5,7
/proc/22213/stat : 22213 (OptimuS_release) R 22211 22213 19995 0 -1 4202496 973 0 0 0 3 0 0 0 25 0 1 0 873271367 22069248 907 33554432000 4194304 4279335 140734379960336 18446744073709551615 4209494 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/22213/statm: 5388 907 250 21 0 2025 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 21552

Child status: 10
Real time (s): 0.043017
CPU time (s): 0.042992
CPU user time (s): 0.041993
CPU system time (s): 0.000999
CPU usage (%): 99.9418
Max. virtual memory (cumulated for all children) (KiB): 21552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.041993
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1031
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= 5
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data

Begin job on node145 at 2011-06-11 18:09:15
IDJOB=3494941
IDBENCH=89326
IDSOLVER=1986
FILE ID=node145/3494941-1307808555
RUNJOBID= node145-1307808507-21928
PBS_JOBID= 13551003
Free space on /tmp= 73968 MiB

SOLVER NAME= OptimuS a100_source
BENCH NAME= SAT11/mus/marques-silva/atpg/bf1355-228.cnf
COMMAND LINE= OptimuS_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3494941-1307808555/watcher-3494941-1307808555 -o /tmp/evaluation-result-3494941-1307808555/solver-3494941-1307808555 -C 1800 -W 1850 -M 7680  OptimuS_release HOME/instance-3494941-1307808555.cnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= fcdfae41aba6a9e12da10a58e1a89961
RANDOM SEED=555910105

node145.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		: 2666.786
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	: 5333.57
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		: 2666.786
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	: 5332.76
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		: 2666.786
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	: 5332.74
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		: 2666.786
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	: 5332.83
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		: 2666.786
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		: 2666.786
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		: 2666.786
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	: 5332.84
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		: 2666.786
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	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      29310536 kB
Buffers:        179060 kB
Cached:         996184 kB
SwapCached:       7976 kB
Active:        2789144 kB
Inactive:       697768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      29310536 kB
SwapTotal:    67111528 kB
SwapFree:     67056964 kB
Dirty:          126084 kB
Writeback:           4 kB
AnonPages:     2309224 kB
Mapped:          13668 kB
Slab:            83280 kB
PageTables:       9868 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2777072 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= 73968 MiB
End job on node145 at 2011-06-11 18:09:15