Trace number 3273561

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
shortsattime+ 2011-03-02SAT 0.756884 0.757554

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n200-s39840374-sat.cnf
MD5SUM085a3847e14185843eddf941accab006
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.756884
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of clauses480
Sum of the clauses size1200
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2400
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 580
Number of clauses of size over 50

Solver Data 

0.69/0.75	c 0 clauses are redundant and removed
0.69/0.75	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.69/0.75	c 0 vars are fixed and 0 clauses are removed after lookahead
0.69/0.75	c initial seed is 732658927
0.69/0.75	c try=1 flip j=2831402 walk=2500503 seed 732658944
0.69/0.75	c A solution is found
0.69/0.75	s SATISFIABLE
0.69/0.75	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 
0.69/0.75	v 0 
0.69/0.75	c Done (mycputime is 0 seconds)

Verifier Data 

OK

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-3273561-1303605899/watcher-3273561-1303605899 -o /tmp/evaluation-result-3273561-1303605899/solver-3273561-1303605899 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3273561-1303605899.cnf 732658700 

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: 3.53 3.90 3.89 3/184 27459
/proc/meminfo: memFree=12979856/32951124 swapFree=67111528/67111528
[pid=27459] ppid=27457 vsize=880764 CPUtime=0 cores=0,2
/proc/27459/stat : 27459 (shortsattime+) R 27457 27459 26564 0 -1 4202496 251 0 0 0 0 0 0 0 25 0 1 0 472190376 901902336 193 33554432000 4194304 4228340 140733815152496 18446744073709551615 4214536 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/27459/statm: 220191 193 116 9 0 217348 0

[startup+0.021049 s]
/proc/loadavg: 3.53 3.90 3.89 3/184 27459
/proc/meminfo: memFree=12979856/32951124 swapFree=67111528/67111528
[pid=27459] ppid=27457 vsize=880764 CPUtime=0.01 cores=0,2
/proc/27459/stat : 27459 (shortsattime+) R 27457 27459 26564 0 -1 4202496 251 0 0 0 1 0 0 0 25 0 1 0 472190376 901902336 193 33554432000 4194304 4228340 140733815152496 18446744073709551615 4218926 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/27459/statm: 220191 193 116 9 0 217348 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 880764

[startup+0.101059 s]
/proc/loadavg: 3.53 3.90 3.89 3/184 27459
/proc/meminfo: memFree=12979856/32951124 swapFree=67111528/67111528
[pid=27459] ppid=27457 vsize=880764 CPUtime=0.09 cores=0,2
/proc/27459/stat : 27459 (shortsattime+) R 27457 27459 26564 0 -1 4202496 251 0 0 0 9 0 0 0 25 0 1 0 472190376 901902336 193 33554432000 4194304 4228340 140733815152496 18446744073709551615 4219058 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/27459/statm: 220191 193 116 9 0 217348 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 880764

[startup+0.301033 s]
/proc/loadavg: 3.53 3.90 3.89 3/184 27459
/proc/meminfo: memFree=12979856/32951124 swapFree=67111528/67111528
[pid=27459] ppid=27457 vsize=880764 CPUtime=0.29 cores=0,2
/proc/27459/stat : 27459 (shortsattime+) R 27457 27459 26564 0 -1 4202496 251 0 0 0 29 0 0 0 25 0 1 0 472190376 901902336 193 33554432000 4194304 4228340 140733815152496 18446744073709551615 4216907 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/27459/statm: 220191 193 116 9 0 217348 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 880764

[startup+0.700951 s]
/proc/loadavg: 3.53 3.90 3.89 3/184 27459
/proc/meminfo: memFree=12979856/32951124 swapFree=67111528/67111528
[pid=27459] ppid=27457 vsize=880764 CPUtime=0.69 cores=0,2
/proc/27459/stat : 27459 (shortsattime+) R 27457 27459 26564 0 -1 4202496 251 0 0 0 69 0 0 0 25 0 1 0 472190376 901902336 193 33554432000 4194304 4228340 140733815152496 18446744073709551615 230808566256 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/27459/statm: 220191 193 116 9 0 217348 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 880764

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

Child status: 10
Real time (s): 0.757554
CPU time (s): 0.756884
CPU user time (s): 0.754885
CPU system time (s): 0.001999
CPU usage (%): 99.9115
Max. virtual memory (cumulated for all children) (KiB): 880764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.754885
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= 256
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= 2
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node104 at 2011-04-24 02:44:59
IDJOB=3273561
IDBENCH=83142
IDSOLVER=1578
FILE ID=node104/3273561-1303605899
RUNJOBID= node104-1303605892-27372
PBS_JOBID= 13150591
Free space on /tmp= 71120 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n200-s39840374-sat.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3273561-1303605899/watcher-3273561-1303605899 -o /tmp/evaluation-result-3273561-1303605899/solver-3273561-1303605899 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3273561-1303605899.cnf 732658700

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

MD5SUM BENCH= 085a3847e14185843eddf941accab006
RANDOM SEED=732658700

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:      12980012 kB
Buffers:       2275080 kB
Cached:       17052676 kB
SwapCached:          0 kB
Active:       10841324 kB
Inactive:      8553792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      12980012 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23776 kB
Writeback:           0 kB
AnonPages:       66784 kB
Mapped:          15160 kB
Slab:           512908 kB
PageTables:       5256 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1988268 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= 71112 MiB
End job on node104 at 2011-04-24 02:45:00