Trace number 3282000

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
SApperloT 2011-03-23UNSAT 1.2928 1.29646

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor016.cnf
MD5SUM12a87f636ffe8e3dae243dd6ce90cac8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.161974
Satisfiable
(Un)Satisfiability was proved
Number of variables4271
Number of clauses12620
Sum of the clauses size29444
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28412
Number of clauses of size 34206
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.19/1.29	
1.19/1.29	s UNSATISFIABLE
1.19/1.29	c Reason for Unsat: Learned empty clause

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3282000-1303754052/watcher-3282000-1303754052 -o /tmp/evaluation-result-3282000-1303754052/solver-3282000-1303754052 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3282000-1303754052.cnf 

running on 2 cores: 0,2

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: 3.72 3.92 3.43 1/174 3362
/proc/meminfo: memFree=11845844/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=12200 CPUtime=0 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 387 0 0 0 0 0 0 0 24 0 1 0 565635811 12492800 326 33554432000 4194304 4465733 140733554652160 18446744073709551615 218880564992 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3050 327 249 67 0 173 0

[startup+0.0389851 s]
/proc/loadavg: 3.72 3.92 3.43 1/174 3362
/proc/meminfo: memFree=11845844/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=12432 CPUtime=0.03 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 613 0 0 0 3 0 0 0 24 0 1 0 565635811 12730368 440 33554432000 4194304 4465733 140733554652160 18446744073709551615 4270202 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3108 440 256 67 0 231 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12432

[startup+0.101039 s]
/proc/loadavg: 3.72 3.92 3.43 1/174 3362
/proc/meminfo: memFree=11845844/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=12868 CPUtime=0.09 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 723 0 0 0 9 0 0 0 25 0 1 0 565635811 13176832 527 33554432000 4194304 4465733 140733554652160 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3217 527 256 67 0 340 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12868

[startup+0.30097 s]
/proc/loadavg: 3.72 3.92 3.43 1/174 3362
/proc/meminfo: memFree=11845844/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=15596 CPUtime=0.29 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 1307 0 0 0 29 0 0 0 25 0 1 0 565635811 15970304 916 33554432000 4194304 4465733 140733554652160 18446744073709551615 4304265 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3899 916 281 67 0 1022 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15596

[startup+0.700926 s]
/proc/loadavg: 3.72 3.92 3.43 1/174 3362
/proc/meminfo: memFree=11845844/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=18244 CPUtime=0.69 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 2056 0 0 0 69 0 0 0 25 0 1 0 565635811 18681856 1525 33554432000 4194304 4465733 140733554652160 18446744073709551615 4304389 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 4561 1525 281 67 0 1684 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18244

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

[startup+1.10684 s]
/proc/loadavg: 3.74 3.92 3.44 5/190 3395
/proc/meminfo: memFree=11777068/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=15728 CPUtime=1.09 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 2489 0 0 0 109 0 0 0 25 0 1 0 565635811 16105472 1177 33554432000 4194304 4465733 140733554652160 18446744073709551615 4270736 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3932 1177 281 67 0 1055 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 15728

[startup+1.20083 s]
/proc/loadavg: 3.74 3.92 3.44 5/190 3395
/proc/meminfo: memFree=11777068/32950928 swapFree=67111528/67111528
[pid=3362] ppid=3360 vsize=15728 CPUtime=1.19 cores=0,2
/proc/3362/stat : 3362 (SApperloT) R 3360 3362 2377 0 -1 4202496 2513 0 0 0 119 0 0 0 25 0 1 0 565635811 16105472 1201 33554432000 4194304 4465733 140733554652160 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/3362/statm: 3932 1201 281 67 0 1055 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 15728

Child status: 20
Real time (s): 1.29646
CPU time (s): 1.2928
CPU user time (s): 1.2868
CPU system time (s): 0.005999
CPU usage (%): 99.7178
Max. virtual memory (cumulated for all children) (KiB): 18244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2868
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2540
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= 7
involuntary context switches= 6

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node112 at 2011-04-25 19:54:12
IDJOB=3282000
IDBENCH=70767
IDSOLVER=1657
FILE ID=node112/3282000-1303754052
RUNJOBID= node112-1303754051-3349
PBS_JOBID= 13154050
Free space on /tmp= 72668 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3282000-1303754052/watcher-3282000-1303754052 -o /tmp/evaluation-result-3282000-1303754052/solver-3282000-1303754052 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3282000-1303754052.cnf

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

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=483114851

node112.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		: 2666.828
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	: 5333.65
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		: 2666.828
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		: 2666.828
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	: 5332.67
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		: 2666.828
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	: 5332.82
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		: 2666.828
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	: 5261.27
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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	: 5332.93
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      11846000 kB
Buffers:       1970432 kB
Cached:       18522636 kB
SwapCached:          0 kB
Active:        9548400 kB
Inactive:     11009884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      11846000 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             628 kB
Writeback:           0 kB
AnonPages:       64888 kB
Mapped:          14492 kB
Slab:           481340 kB
PageTables:       4972 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   194252 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= 72652 MiB
End job on node112 at 2011-04-25 19:54:13