Trace number 3495563

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 x100_source? (exit code) 0.071989 0.0730271

General information on the benchmark

Namemus/marques-silva/
bmc-default/longmult6.cnf
MD5SUMbf30cb2a7e6ed20793696ed7dc1e07cb
Bench CategoryMUS (MUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.904
Satisfiable
(Un)Satisfiability was proved
Number of variables2848
Number of clauses8853
Sum of the clauses size21387
Maximum clause length18
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 25973
Number of clauses of size 32317
Number of clauses of size 4395
Number of clauses of size 57
Number of clauses of size over 5126

Solver Data

0.04/0.07	c - Reading the instance.. OK! Totally clauses:     8853; Vars:     2848; Time: 0.01
0.04/0.07	c - Unit propagation..     OK! Removed clauses:      935;                 Time: 0.00
0.04/0.07	c - Delete by resolution.. OK! Removed clauses:     2157;                 Time: 0.06
0.04/0.07	c   - Solving the original instance..
0.04/0.07	c     - NOT OK - SAT!! Terminating..
0.04/0.07	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-3495563-1307809705/watcher-3495563-1307809705 -o /tmp/evaluation-result-3495563-1307809705/solver-3495563-1307809705 -C 1800 -W 1850 -M 7680 OptimuS_release HOME/instance-3495563-1307809705.cnf 

running on 2 cores: 0,2

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: 0.96 2.26 3.05 3/178 8133
/proc/meminfo: memFree=31589840/32951124 swapFree=67056304/67111528
[pid=8133] ppid=8129 vsize=20680 CPUtime=0 cores=0,2
/proc/8133/stat : 8133 (OptimuS_release) R 8129 8133 6571 0 -1 4202496 820 0 0 0 0 0 0 0 24 0 1 0 971201051 21176320 743 33554432000 4194304 4280283 140733838927920 18446744073709551615 260020395776 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/8133/statm: 5170 743 239 21 0 1807 0

[startup+0.0426621 s]
/proc/loadavg: 0.96 2.26 3.05 3/178 8133
/proc/meminfo: memFree=31589840/32951124 swapFree=67056304/67111528
[pid=8133] ppid=8129 vsize=21980 CPUtime=0.04 cores=0,2
/proc/8133/stat : 8133 (OptimuS_release) R 8129 8133 6571 0 -1 4202496 1108 0 0 0 4 0 0 0 24 0 1 0 971201051 22507520 1030 33554432000 4194304 4280283 140733838927920 18446744073709551615 4208471 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/8133/statm: 5495 1030 251 21 0 2132 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 21980

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

[startup+0.0426621 s]
/proc/loadavg: 0.96 2.26 3.05 3/178 8133
/proc/meminfo: memFree=31589840/32951124 swapFree=67056304/67111528
[pid=8133] ppid=8129 vsize=21980 CPUtime=0.04 cores=0,2
/proc/8133/stat : 8133 (OptimuS_release) R 8129 8133 6571 0 -1 4202496 1108 0 0 0 4 0 0 0 24 0 1 0 971201051 22507520 1030 33554432000 4194304 4280283 140733838927920 18446744073709551615 4208471 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/8133/statm: 5495 1030 251 21 0 2132 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 21980

Child status: 10
Real time (s): 0.0730271
CPU time (s): 0.071989
CPU user time (s): 0.071989
CPU system time (s): 0
CPU usage (%): 98.5785
Max. virtual memory (cumulated for all children) (KiB): 21980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.071989
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= 1160
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= 8
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data

Begin job on node110 at 2011-06-11 18:28:25
IDJOB=3495563
IDBENCH=89592
IDSOLVER=1988
FILE ID=node110/3495563-1307809705
RUNJOBID= node110-1307809705-8104
PBS_JOBID= 13551064
Free space on /tmp= 74144 MiB

SOLVER NAME= OptimuS x100_source
BENCH NAME= SAT11/mus/marques-silva/bmc-default/longmult6.cnf
COMMAND LINE= OptimuS_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3495563-1307809705/watcher-3495563-1307809705 -o /tmp/evaluation-result-3495563-1307809705/solver-3495563-1307809705 -C 1800 -W 1850 -M 7680  OptimuS_release HOME/instance-3495563-1307809705.cnf

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

MD5SUM BENCH= bf30cb2a7e6ed20793696ed7dc1e07cb
RANDOM SEED=721952719

node110.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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.76
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		: 2666.830
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	: 5332.83
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		: 2666.830
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	: 5332.74
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		: 2666.830
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      31591192 kB
Buffers:        316856 kB
Cached:         791084 kB
SwapCached:       8464 kB
Active:         510800 kB
Inactive:       616096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      31591192 kB
SwapTotal:    67111528 kB
SwapFree:     67056304 kB
Dirty:             784 kB
Writeback:           0 kB
AnonPages:       16940 kB
Mapped:          12848 kB
Slab:           168384 kB
PageTables:       4820 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   194776 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= 74144 MiB
End job on node110 at 2011-06-11 18:28:25