Trace number 3153844

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
sattime2011 2011-03-02SAT 1.71574 1.716

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S1592669696-022.SATISFIABLE.cnf
MD5SUM23d58aabf220f78ecd3bc4380d2e7fb8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.100983
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 

1.69/1.71	c 0 clauses are redundant and removed
1.69/1.71	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.69/1.71	c 0 vars are fixed and 0 clauses are removed after lookahead
1.69/1.71	c initial seed is 772680580
1.69/1.71	c try=1 flip j=846320 walk=638210 seed 772680597
1.69/1.71	c A solution is found
1.69/1.71	s SATISFIABLE
1.69/1.71	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 
1.69/1.71	v 0 
1.69/1.71	c Done (mycputime is 1 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3153844-1301683365/watcher-3153844-1301683365 -o /tmp/evaluation-result-3153844-1301683365/solver-3153844-1301683365 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153844-1301683365.cnf 772677123 

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: 4.05 4.01 3.94 4/189 31162
/proc/meminfo: memFree=18605336/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1185844 CPUtime=0 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 343 0 0 0 0 0 0 0 25 0 1 0 358567182 1214304256 284 33554432000 4194304 4230460 140736835159216 18446744073709551615 4207690 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296461 284 103 9 0 293618 0

[startup+0.0493991 s]
/proc/loadavg: 4.05 4.01 3.94 4/189 31162
/proc/meminfo: memFree=18605336/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=0.04 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 4 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4220896 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1186112

[startup+0.100393 s]
/proc/loadavg: 4.05 4.01 3.94 4/189 31162
/proc/meminfo: memFree=18605336/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=0.09 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 9 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4220893 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186112

[startup+0.300355 s]
/proc/loadavg: 4.05 4.01 3.94 4/189 31162
/proc/meminfo: memFree=18605336/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=0.29 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 29 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4224173 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186112

[startup+0.700282 s]
/proc/loadavg: 4.05 4.01 3.94 4/189 31162
/proc/meminfo: memFree=18605336/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=0.69 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 69 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4220923 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1186112

[startup+1.50115 s]
/proc/loadavg: 4.05 4.01 3.94 5/190 31163
/proc/meminfo: memFree=18603592/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=1.49 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 149 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1186112

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

[startup+1.70111 s]
/proc/loadavg: 4.05 4.01 3.94 5/190 31163
/proc/meminfo: memFree=18603592/32950928 swapFree=67111528/67111528
[pid=31162] ppid=31160 vsize=1186112 CPUtime=1.69 cores=0,2
/proc/31162/stat : 31162 (sattime2011) R 31160 31162 30314 0 -1 4202496 476 0 0 0 169 0 0 0 25 0 1 0 358567182 1214578688 416 33554432000 4194304 4230460 140736835159216 18446744073709551615 4219578 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31162/statm: 296528 416 117 9 0 293685 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 1186112

Child status: 10
Real time (s): 1.716
CPU time (s): 1.71574
CPU user time (s): 1.71274
CPU system time (s): 0.002999
CPU usage (%): 99.9847
Max. virtual memory (cumulated for all children) (KiB): 1186112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.71274
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480
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= 4

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node112 at 2011-04-01 20:42:45
IDJOB=3153844
IDBENCH=82951
IDSOLVER=1563
FILE ID=node112/3153844-1301683365
RUNJOBID= node112-1301678139-30332
PBS_JOBID= 12840585
Free space on /tmp= 71548 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S1592669696-022.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153844-1301683365/watcher-3153844-1301683365 -o /tmp/evaluation-result-3153844-1301683365/solver-3153844-1301683365 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153844-1301683365.cnf 772677123

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

MD5SUM BENCH= 23d58aabf220f78ecd3bc4380d2e7fb8
RANDOM SEED=772677123

node112.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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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	: 5332.82
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		: 2666.828
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	: 5261.27
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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	: 5332.93
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      18605492 kB
Buffers:        379184 kB
Cached:       13605432 kB
SwapCached:          0 kB
Active:        8258876 kB
Inactive:      5798580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18605492 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7792 kB
Writeback:           0 kB
AnonPages:       72636 kB
Mapped:          15328 kB
Slab:           223924 kB
PageTables:       5728 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3797048 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= 71540 MiB
End job on node112 at 2011-04-01 20:42:47