Trace number 3291481

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
MPhaseSAT_M 2011-02-16? 2.6436 2.64814

General information on the benchmark

NameSAT03/industrial/li/li-test4/
li-test4-100.shuffled-as.sat03-370.cnf
MD5SUM5e5606ae7367b9272c60adc115594912
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables36809
Number of clauses142491
Sum of the clauses size559708
Maximum clause length172
Minimum clause length1
Number of clauses of size 114
Number of clauses of size 224558
Number of clauses of size 367458
Number of clauses of size 449000
Number of clauses of size 51
Number of clauses of size over 51460

Solver Data 

2.58/2.64	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
2.58/2.64	c input CNF file=HOME/instance-3291481-1303789256.cnf 
2.58/2.64	c Clause#=142491  var#=36809  ratio=3 
2.58/2.64	c phase 1 
2.58/2.64	c Simplified clause#=149462 
2.58/2.64	c XOR_varElimination deleted var#=8 clauses#=141661 
2.58/2.64	c before shortening average=14.417732, XOR clauses#=9305 
2.58/2.64	c 
2.58/2.64	c 
2.58/2.64	c SEGMENTATION FAULT 
2.58/2.64	c 
2.58/2.64	s UNKNOWN
2.58/2.64	c

Verifier Data 

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

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-3291481-1303789256/watcher-3291481-1303789256 -o /tmp/evaluation-result-3291481-1303789256/solver-3291481-1303789256 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3291481-1303789256.cnf 

running on 2 cores: 4,6

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: 3.46 3.86 3.51 5/189 25775
/proc/meminfo: memFree=16325156/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=5372 CPUtime=0 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 324 0 0 0 0 0 0 0 25 0 1 0 490526044 5500928 265 33554432000 134512640 134829744 4291595200 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 1343 265 225 78 0 629 0

[startup+0.068936 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25775
/proc/meminfo: memFree=16325156/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=5372 CPUtime=0.06 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 631 0 0 0 6 0 0 0 25 0 1 0 490526044 5500928 572 33554432000 134512640 134829744 4291595200 18446744073709551615 9774671 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 1343 573 225 78 0 629 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5372

[startup+0.100962 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25775
/proc/meminfo: memFree=16325156/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=5372 CPUtime=0.09 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 787 0 0 0 9 0 0 0 25 0 1 0 490526044 5500928 728 33554432000 134512640 134829744 4291595200 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 1343 729 225 78 0 629 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5372

[startup+0.300923 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25775
/proc/meminfo: memFree=16325156/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=6364 CPUtime=0.29 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 8674 0 0 0 28 1 0 0 25 0 1 0 490526044 6516736 1072 33554432000 134512640 134829744 4291595200 18446744073709551615 134578304 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 1591 1072 261 78 0 877 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6364

[startup+0.700848 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25775
/proc/meminfo: memFree=16325156/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=32352 CPUtime=0.68 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 16547 0 0 0 66 2 0 0 25 0 1 0 490526044 33128448 7227 33554432000 134512640 134829744 4291595200 18446744073709551615 10024444 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 8088 7228 285 78 0 7374 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 32352

[startup+1.5007 s]
/proc/loadavg: 3.46 3.86 3.51 6/190 25776
/proc/meminfo: memFree=16296676/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=32120 CPUtime=1.48 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 17083 0 0 0 146 2 0 0 25 0 1 0 490526044 32890880 7115 33554432000 134512640 134829744 4291595200 18446744073709551615 134661122 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 8030 7115 293 78 0 7316 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 32120

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

[startup+2.30055 s]
/proc/loadavg: 3.50 3.86 3.51 6/190 25776
/proc/meminfo: memFree=16315196/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=12668 CPUtime=2.28 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 32356 0 0 0 224 4 0 0 25 0 1 0 490526044 12972032 2549 33554432000 134512640 134829744 4291595200 18446744073709551615 134582195 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 3167 2549 271 78 0 2453 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 12668

[startup+2.50049 s]
/proc/loadavg: 3.50 3.86 3.51 6/190 25776
/proc/meminfo: memFree=16315196/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=16144 CPUtime=2.48 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 33023 0 0 0 244 4 0 0 25 0 1 0 490526044 16531456 2287 33554432000 134512640 134829744 4291595200 18446744073709551615 134580230 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 4036 2287 271 78 0 3322 0
Current children cumulated CPU time (s) 2.48
Current children cumulated vsize (KiB) 16144

[startup+2.60047 s]
/proc/loadavg: 3.50 3.86 3.51 6/190 25776
/proc/meminfo: memFree=16315196/32951124 swapFree=67111528/67111528
[pid=25775] ppid=25773 vsize=16144 CPUtime=2.58 cores=4,6
/proc/25775/stat : 25775 (MPhaseSAT_M) R 25773 25775 24259 0 -1 4202496 34088 0 0 0 254 4 0 0 25 0 1 0 490526044 16531456 2579 33554432000 134512640 134829744 4291595200 18446744073709551615 134572184 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25775/statm: 4036 2579 271 78 0 3322 0
Current children cumulated CPU time (s) 2.58
Current children cumulated vsize (KiB) 16144

Child status: 0
Real time (s): 2.64814
CPU time (s): 2.6436
CPU user time (s): 2.58761
CPU system time (s): 0.055991
CPU usage (%): 99.8286
Max. virtual memory (cumulated for all children) (KiB): 33560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.58761
system time used= 0.055991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 36841
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= 3

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-26 05:40:56
IDJOB=3291481
IDBENCH=84227
IDSOLVER=1522
FILE ID=node105/3291481-1303789256
RUNJOBID= node105-1303789253-25707
PBS_JOBID= 13157226
Free space on /tmp= 72200 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT03/industrial/li/li-test4/li-test4-100.shuffled-as.sat03-370.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3291481-1303789256/watcher-3291481-1303789256 -o /tmp/evaluation-result-3291481-1303789256/solver-3291481-1303789256 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3291481-1303789256.cnf

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

MD5SUM BENCH= 5e5606ae7367b9272c60adc115594912
RANDOM SEED=681410137

node105.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		: 2666.825
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		: 2666.825
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	: 5226.15
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		: 2666.825
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	: 5332.82
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		: 2666.825
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	: 5332.75
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		: 2666.825
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	: 5410.70
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		: 2666.825
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		: 2666.825
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	: 5332.82
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		: 2666.825
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:      16325180 kB
Buffers:       2289944 kB
Cached:       13666820 kB
SwapCached:          0 kB
Active:        8462484 kB
Inactive:      7593260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16325180 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            9136 kB
Writeback:          32 kB
AnonPages:       98480 kB
Mapped:          16604 kB
Slab:           506296 kB
PageTables:       5132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   283100 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= 72200 MiB
End job on node105 at 2011-04-26 05:40:59