Trace number 3445879

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 2011-02-15SAT 1.11783 1.11897

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_220.shuffled.cnf
MD5SUMf0b7e0675915478b15cab3695fd0fd62
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.033994
Satisfiable
(Un)Satisfiability was proved
Number of variables220
Number of clauses3432
Sum of the clauses size17000
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32
Number of clauses of size 4156
Number of clauses of size 53274
Number of clauses of size over 50

Solver Data 

1.01/1.11	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.01/1.11	c input CNF file=HOME/instance-3445879-1306986307.cnf 
1.01/1.11	c Clause#=3432  var#=220  ratio=15 
1.01/1.11	c Simplified clause#=3432 
1.01/1.11	c XOR_varElimination deleted var#=0 clauses#=3432 
1.01/1.11	c inative var#=0 
1.01/1.11	c free var#=220  
1.01/1.11	c local search on 
1.01/1.11	c A solution found by local search 
1.01/1.11	c unfixed var#=0 var#=220 
1.01/1.11	c verified 
1.01/1.11	c 
1.01/1.11	s SATISFIABLE
1.01/1.11	v 1 2 3 4 -5 6 7 8 -9 10 11 -12 13 14 15 -16 17 18 19 -20 21 22 23 -24 25 26 27 -28 29 30 31 -32 33 -34 -35 36 -37 -38 39 40 41 42 -43 -44 45 -46 47 -48 49 50 -51 -52 53 -54 55 56 -57 58 59 -60 -61 62 -63 -64 65 66 67 68 69 70 71 -72 73 74 -75 -76 -77 -78 79 80 81 -82 83 84 -85 86 -87 88 -89 90 -91 92 -93 94 95 96 97 98 99 100 -101 -102 -103 -104 -105 -106 -107 108 -109 110 111 -112 -113 -114 115 116 -117 -118 -119 120 121 122 -123 -124 -125 126 -127 -128 -129 -130 -131 -132 -133 134 135 136 137 -138 -139 140 -141 -142 143 144 145 -146 147 148 149 -150 151 -152 153 -154 -155 156 157 -158 -159 160 -161 162 163 -164 165 166 -167 168 169 170 -171 172 -173 174 -175 -176 177 178 -179 -180 -181 -182 183 184 185 -186 -187 188 189 -190 191 -192 -193 -194 195 196 -197 198 199 -200 201 202 203 204 205 -206 207 208 209 -210 211 212 -213 214 -215 -216 -217 218 219 220 
1.01/1.11	v 0
1.01/1.11	c 
1.01/1.11	c  Running time=1.115830

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3445879-1306986307/watcher-3445879-1306986307 -o /tmp/evaluation-result-3445879-1306986307/solver-3445879-1306986307 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445879-1306986307.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28540
/proc/meminfo: memFree=19559760/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=3456 CPUtime=0.01 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202496 411 0 0 0 1 0 0 0 25 0 1 0 888861475 3538944 349 33554432000 134512640 134731564 4294190400 18446744073709551615 134580496 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28540/statm: 864 349 238 54 0 174 0

[startup+0.0569979 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28540
/proc/meminfo: memFree=19559760/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=3456 CPUtime=0.05 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202496 411 0 0 0 5 0 0 0 25 0 1 0 888861475 3538944 349 33554432000 134512640 134731564 4294190400 18446744073709551615 134580500 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28540/statm: 864 349 238 54 0 174 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3456

[startup+0.100991 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28540
/proc/meminfo: memFree=19559760/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=3680 CPUtime=0.09 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202496 537 0 0 0 9 0 0 0 25 0 1 0 888861475 3768320 474 33554432000 134512640 134731564 4294190400 18446744073709551615 134667535 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28540/statm: 920 474 268 54 0 230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3680

[startup+0.300955 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28540
/proc/meminfo: memFree=19559760/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=4208 CPUtime=0.29 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202496 657 0 0 0 29 0 0 0 25 0 1 0 888861475 4308992 594 33554432000 134512640 134731564 4294190400 18446744073709551615 134720131 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28540/statm: 1052 594 268 54 0 362 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4208

[startup+0.700886 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28540
/proc/meminfo: memFree=19559760/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=4472 CPUtime=0.69 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202496 733 0 0 0 69 0 0 0 25 0 1 0 888861475 4579328 670 33554432000 134512640 134731564 4294190400 18446744073709551615 7954778 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28540/statm: 1118 670 268 54 0 428 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4472

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

[startup+1.11881 s]
/proc/loadavg: 1.51 1.25 1.53 3/515 28541
/proc/meminfo: memFree=19557056/32950940 swapFree=67111364/67111528
[pid=28540] ppid=28538 vsize=0 CPUtime=1.11 cores=0,2,4,6
/proc/28540/stat : 28540 (MPhaseSAT) R 28538 28540 25394 0 -1 4202500 876 0 0 0 111 0 0 0 25 0 1 0 888861475 0 0 33554432000 0 0 0 0 0 0 0 4096 1026 18446744073709551615 0 0 17 4 0 0 0
/proc/28540/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.11
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 1.11897
CPU time (s): 1.11783
CPU user time (s): 1.11583
CPU system time (s): 0.001999
CPU usage (%): 99.8984
Max. virtual memory (cumulated for all children) (KiB): 4740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.11583
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 876
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 0.012998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node117 at 2011-06-02 05:45:07
IDJOB=3445879
IDBENCH=87453
IDSOLVER=1941
FILE ID=node117/3445879-1306986307
RUNJOBID= node117-1306986261-28357
PBS_JOBID= 13497692
Free space on /tmp= 73596 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_220.shuffled.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445879-1306986307/watcher-3445879-1306986307 -o /tmp/evaluation-result-3445879-1306986307/solver-3445879-1306986307 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445879-1306986307.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= f0b7e0675915478b15cab3695fd0fd62
RANDOM SEED=1662916129

node117.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		: 2666.849
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	: 5333.69
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		: 2666.849
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	: 5332.75
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.75
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      19559916 kB
Buffers:        328732 kB
Cached:        2889256 kB
SwapCached:          0 kB
Active:       10056580 kB
Inactive:      2955780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      19559916 kB
SwapTotal:    67111528 kB
SwapFree:     67111364 kB
Dirty:             408 kB
Writeback:           0 kB
AnonPages:     9794048 kB
Mapped:          41896 kB
Slab:           251456 kB
PageTables:      57868 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS: 149499164 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= 73596 MiB
End job on node117 at 2011-06-02 05:45:08