Trace number 3281958

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
MPhaseSAT64 2011-03-03UNSAT 1.51177 1.5122

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 

1.49/1.51	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
1.49/1.51	c input CNF file=HOME/instance-3281958-1303752875.cnf 
1.49/1.51	c Clause#=12620  var#=4271  ratio=2 
1.49/1.51	c phase 1 
1.49/1.51	c 
1.49/1.51	s UNSATISFIABLE
1.49/1.51	c 
1.49/1.51	c  Running time=1.510770

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-3281958-1303752875/watcher-3281958-1303752875 -o /tmp/evaluation-result-3281958-1303752875/solver-3281958-1303752875 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3281958-1303752875.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: 4.02 3.99 3.91 4/189 30241
/proc/meminfo: memFree=16628108/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=3364 CPUtime=0 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 334 0 0 0 0 0 0 0 25 0 1 0 565518123 3444736 275 33554432000 134512640 134761588 4293445952 18446744073709551615 5751984 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 841 275 225 61 0 144 0

[startup+0.062279 s]
/proc/loadavg: 4.02 3.99 3.91 4/189 30241
/proc/meminfo: memFree=16628108/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=4128 CPUtime=0.06 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 820 0 0 0 6 0 0 0 25 0 1 0 565518123 4227072 577 33554432000 134512640 134761588 4293445952 18446744073709551615 134642940 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 1032 577 254 61 0 335 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4128

[startup+0.100274 s]
/proc/loadavg: 4.02 3.99 3.91 4/189 30241
/proc/meminfo: memFree=16628108/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=4128 CPUtime=0.09 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 820 0 0 0 9 0 0 0 25 0 1 0 565518123 4227072 577 33554432000 134512640 134761588 4293445952 18446744073709551615 134644218 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 1032 577 254 61 0 335 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4128

[startup+0.30024 s]
/proc/loadavg: 4.02 3.99 3.91 4/189 30241
/proc/meminfo: memFree=16628108/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=4308 CPUtime=0.29 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 1039 0 0 0 29 0 0 0 25 0 1 0 565518123 4411392 607 33554432000 134512640 134761588 4293445952 18446744073709551615 134660653 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 1077 607 265 61 0 380 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4308

[startup+0.701139 s]
/proc/loadavg: 4.02 3.99 3.91 4/189 30241
/proc/meminfo: memFree=16628108/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=4568 CPUtime=0.69 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 1131 0 0 0 69 0 0 0 25 0 1 0 565518123 4677632 699 33554432000 134512640 134761588 4293445952 18446744073709551615 134634347 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 1142 699 265 61 0 445 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4568

[startup+1.50099 s]
/proc/loadavg: 4.02 3.99 3.91 5/190 30242
/proc/meminfo: memFree=16624896/32951124 swapFree=67111528/67111528
[pid=30241] ppid=30239 vsize=7216 CPUtime=1.49 cores=0,2
/proc/30241/stat : 30241 (MPhaseSAT64) R 30239 30241 29242 0 -1 4202496 1701 0 0 0 149 0 0 0 25 0 1 0 565518123 7389184 1240 33554432000 134512640 134761588 4293445952 18446744073709551615 134635873 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/30241/statm: 1804 1240 271 61 0 1107 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7216

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

Child status: 20
Real time (s): 1.5122
CPU time (s): 1.51177
CPU user time (s): 1.50777
CPU system time (s): 0.003999
CPU usage (%): 99.9715
Max. virtual memory (cumulated for all children) (KiB): 7216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.50777
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1709
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= 6
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node110 at 2011-04-25 19:34:35
IDJOB=3281958
IDBENCH=70767
IDSOLVER=1521
FILE ID=node110/3281958-1303752875
RUNJOBID= node110-1303752264-29967
PBS_JOBID= 13154052
Free space on /tmp= 72196 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3281958-1303752875/watcher-3281958-1303752875 -o /tmp/evaluation-result-3281958-1303752875/solver-3281958-1303752875 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3281958-1303752875.cnf

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

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=829322147

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:      16628388 kB
Buffers:       2323676 kB
Cached:       13008936 kB
SwapCached:          0 kB
Active:        8447420 kB
Inactive:      7305624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16628388 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            8936 kB
Writeback:           0 kB
AnonPages:      419392 kB
Mapped:          16732 kB
Slab:           504788 kB
PageTables:       6040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   607896 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= 72196 MiB
End job on node110 at 2011-04-25 19:34:37