Trace number 3375186

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 2011-05-14 (fixed)SAT 3.18151 3.18604

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S100095490-071.SATISFIABLE.cnf
MD5SUM2ab9bb0f88fa203f02db11acc4404e31
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.084986
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 53727
Number of clauses of size over 50

Solver Data 

3.09/3.18	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
3.09/3.18	c input CNF file=HOME/instance-3375186-1305449792.cnf 
3.09/3.18	c Clause#=3727  var#=175  ratio=21 
3.09/3.18	c Simplified clause#=3727 
3.09/3.18	c XOR_varElimination deleted var#=0 clauses#=3727 
3.09/3.18	c inative var#=0 
3.09/3.18	c free var#=175  
3.09/3.18	c local search on 
3.09/3.18	c A solution found by local search 
3.09/3.18	c unfixed var#=0 var#=175 
3.09/3.18	c verified 
3.09/3.18	c 
3.09/3.18	s SATISFIABLE
3.09/3.18	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 
3.09/3.18	v 0
3.09/3.18	c 
3.09/3.18	c  Running time=3.179516

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375186-1305449792/watcher-3375186-1305449792 -o /tmp/evaluation-result-3375186-1305449792/solver-3375186-1305449792 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375186-1305449792.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: 3.76 2.47 2.57 5/359 26970
/proc/meminfo: memFree=25687488/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=12288 CPUtime=0 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 465 0 0 0 0 0 0 0 25 0 1 0 656579693 12582912 406 33554432000 4194304 4479436 140736237555072 18446744073709551615 4219890 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3072 406 278 70 0 192 0

[startup+0.101509 s]
/proc/loadavg: 3.76 2.47 2.57 5/359 26970
/proc/meminfo: memFree=25687488/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=13024 CPUtime=0.09 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 722 0 0 0 9 0 0 0 25 0 1 0 656579693 13336576 644 33554432000 4194304 4479436 140736237555072 18446744073709551615 4340731 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3256 644 305 70 0 376 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13024

[startup+0.200496 s]
/proc/loadavg: 3.76 2.47 2.57 5/359 26970
/proc/meminfo: memFree=25687488/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=13024 CPUtime=0.19 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 742 0 0 0 19 0 0 0 25 0 1 0 656579693 13336576 664 33554432000 4194304 4479436 140736237555072 18446744073709551615 4450905 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3256 664 324 70 0 376 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 13024

[startup+0.300472 s]
/proc/loadavg: 3.76 2.47 2.57 5/359 26970
/proc/meminfo: memFree=25687488/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=13464 CPUtime=0.29 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 821 0 0 0 29 0 0 0 25 0 1 0 656579693 13787136 743 33554432000 4194304 4479436 140736237555072 18446744073709551615 4452022 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3366 743 325 70 0 486 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13464

[startup+0.700398 s]
/proc/loadavg: 3.76 2.47 2.57 5/359 26970
/proc/meminfo: memFree=25687488/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=14492 CPUtime=0.69 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 1110 0 0 0 69 0 0 0 25 0 1 0 656579693 14839808 1032 33554432000 4194304 4479436 140736237555072 18446744073709551615 4380555 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3623 1034 327 70 0 743 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14492

[startup+1.50028 s]
/proc/loadavg: 3.76 2.47 2.57 5/360 26971
/proc/meminfo: memFree=25683892/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=14492 CPUtime=1.49 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 1113 0 0 0 149 0 0 0 25 0 1 0 656579693 14839808 1035 33554432000 4194304 4479436 140736237555072 18446744073709551615 4295250 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3623 1035 328 70 0 743 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14492

[startup+3.10099 s]
/proc/loadavg: 3.76 2.47 2.57 5/360 26971
/proc/meminfo: memFree=25681784/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=14492 CPUtime=3.09 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 1113 0 0 0 309 0 0 0 25 0 1 0 656579693 14839808 1035 33554432000 4194304 4479436 140736237555072 18446744073709551615 4294616 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3623 1035 328 70 0 743 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14492

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

[startup+3.10099 s]
/proc/loadavg: 3.76 2.47 2.57 5/360 26971
/proc/meminfo: memFree=25681784/32951124 swapFree=40554400/67111528
[pid=26970] ppid=26968 vsize=14492 CPUtime=3.09 cores=0,2
/proc/26970/stat : 26970 (MPhaseSAT64) R 26968 26970 25236 0 -1 4202496 1113 0 0 0 309 0 0 0 25 0 1 0 656579693 14839808 1035 33554432000 4194304 4479436 140736237555072 18446744073709551615 4294616 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/26970/statm: 3623 1035 328 70 0 743 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14492

Child status: 10
Real time (s): 3.18604
CPU time (s): 3.18151
CPU user time (s): 3.17952
CPU system time (s): 0.001999
CPU usage (%): 99.8578
Max. virtual memory (cumulated for all children) (KiB): 14492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.17952
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= 1121
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 0.007998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-15 10:56:32
IDJOB=3375186
IDBENCH=82895
IDSOLVER=1855
FILE ID=node104/3375186-1305449792
RUNJOBID= node104-1305449609-26869
PBS_JOBID= 13324853
Free space on /tmp= 73428 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S100095490-071.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375186-1305449792/watcher-3375186-1305449792 -o /tmp/evaluation-result-3375186-1305449792/solver-3375186-1305449792 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375186-1305449792.cnf

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

MD5SUM BENCH= 2ab9bb0f88fa203f02db11acc4404e31
RANDOM SEED=726963374

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      25687628 kB
Buffers:        309092 kB
Cached:        2449124 kB
SwapCached:     122128 kB
Active:        1016412 kB
Inactive:      5977140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25687628 kB
SwapTotal:    67111528 kB
SwapFree:     40554400 kB
Dirty:             476 kB
Writeback:          12 kB
AnonPages:     4126168 kB
Mapped:          11900 kB
Slab:           120144 kB
PageTables:      84972 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 74903508 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= 73428 MiB
End job on node104 at 2011-05-15 10:56:36