Trace number 3434149

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
minisat hack: MiniSAT 2.2.0-agile-26UNSAT 2.92055 2.92081

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-25-U-7061.cnf
MD5SUM23c04ef615431bf15ef9eafe9b944fb8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.79273
Satisfiable
(Un)Satisfiability was proved
Number of variables541150
Number of clauses1645836
Sum of the clauses size4001876
Maximum clause length1576
Minimum clause length1
Number of clauses of size 1141
Number of clauses of size 21092306
Number of clauses of size 3543262
Number of clauses of size 44256
Number of clauses of size 51339
Number of clauses of size over 54532

Solver Data 

2.89/2.91	WARNING: for repeatability, setting FPU to use double precision
2.89/2.91	============================[ Problem Statistics ]=============================
2.89/2.91	|                                                                             |
2.89/2.91	|  Number of variables:        541150                                         |
2.89/2.91	|  Number of clauses:         1576290                                         |
2.89/2.91	|  Parse time:                   0.69 s                                       |
2.89/2.91	|  Eliminated clauses:           9.79 Mb                                      |
2.89/2.91	|  Simplification time:          2.13 s                                       |
2.89/2.91	|                                                                             |
2.89/2.91	===============================================================================
2.89/2.91	Solved by simplification
2.89/2.91	restarts              : 0
2.89/2.91	skipped               : 0
2.89/2.91	conflicts             : 0              (0 /sec)
2.89/2.91	decisions             : 0              ( nan % random) (0 /sec)
2.89/2.91	propagations          : 34400          (12179 /sec)
2.89/2.91	conflict literals     : 0              ( nan % deleted)
2.89/2.91	Memory used           : 275.00 MB
2.89/2.91	CPU time              : 2.82457 s
2.89/2.91	
2.89/2.91	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

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-3434149-1306850798/watcher-3434149-1306850798 -o /tmp/evaluation-result-3434149-1306850798/solver-3434149-1306850798 -C 5000 -W 5100 -M 15500 minisat HOME/instance-3434149-1306850798.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: 2.09 2.05 2.01 3/477 6272
/proc/meminfo: memFree=7140212/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=28172 CPUtime=0 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 2362 0 0 0 0 0 0 0 23 0 1 0 777495260 28848128 2302 33554432000 4194304 4291235 140733553411360 18446744073709551615 4277553 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 7043 2305 216 24 0 3677 0

[startup+0.026172 s]
/proc/loadavg: 2.09 2.05 2.01 3/477 6272
/proc/meminfo: memFree=7140212/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=39520 CPUtime=0.01 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 5258 0 0 0 1 0 0 0 23 0 1 0 777495260 40468480 5185 33554432000 4194304 4291235 140733553411360 18446744073709551615 4240833 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 9880 5186 216 24 0 6514 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 39520

[startup+0.101192 s]
/proc/loadavg: 2.09 2.05 2.01 3/477 6272
/proc/meminfo: memFree=7140212/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=86592 CPUtime=0.09 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 14452 0 0 0 8 1 0 0 23 0 1 0 777495260 88670208 14304 33554432000 4194304 4291235 140733553411360 18446744073709551615 254261277381 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 21648 14305 216 24 0 18282 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 86592

[startup+0.301151 s]
/proc/loadavg: 2.09 2.05 2.01 3/477 6272
/proc/meminfo: memFree=7140212/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=121828 CPUtime=0.29 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 25042 0 0 0 26 3 0 0 25 0 1 0 777495260 124751872 23167 33554432000 4194304 4291235 140733553411360 18446744073709551615 254261277381 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 30457 23169 216 24 0 27091 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 121828

[startup+0.70108 s]
/proc/loadavg: 2.09 2.05 2.01 3/477 6272
/proc/meminfo: memFree=7140212/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=197940 CPUtime=0.69 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 45644 0 0 0 63 6 0 0 25 0 1 0 777495260 202690560 41093 33554432000 4194304 4291235 140733553411360 18446744073709551615 254261277381 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 49485 41096 216 24 0 46119 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 197940

[startup+1.50093 s]
/proc/loadavg: 2.09 2.05 2.01 3/478 6273
/proc/meminfo: memFree=6961900/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=211932 CPUtime=1.49 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 51434 0 0 0 143 6 0 0 25 0 1 0 777495260 217018368 45206 33554432000 4194304 4291235 140733553411360 18446744073709551615 4276279 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 52983 45207 239 24 0 49617 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 211932

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

[startup+2.3008 s]
/proc/loadavg: 2.09 2.05 2.01 3/478 6273
/proc/meminfo: memFree=6926436/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=282328 CPUtime=2.29 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 62979 0 0 0 222 7 0 0 25 0 1 0 777495260 289103872 55772 33554432000 4194304 4291235 140733553411360 18446744073709551615 4210080 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 70582 55774 239 24 0 67216 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 282328

[startup+2.70073 s]
/proc/loadavg: 2.09 2.05 2.01 3/478 6273
/proc/meminfo: memFree=6926436/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=237904 CPUtime=2.69 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 67845 0 0 0 261 8 0 0 25 0 1 0 777495260 243613696 50430 33554432000 4194304 4291235 140733553411360 18446744073709551615 4216871 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 59476 50430 239 24 0 56110 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 237904

[startup+2.90072 s]
/proc/loadavg: 2.09 2.05 2.01 3/478 6273
/proc/meminfo: memFree=6926436/32951124 swapFree=67057928/67111528
[pid=6272] ppid=6270 vsize=229904 CPUtime=2.89 cores=0,2,4,6
/proc/6272/stat : 6272 (minisat) R 6270 6272 5718 0 -1 4202496 72373 0 0 0 281 8 0 0 25 0 1 0 777495260 235421696 47783 33554432000 4194304 4291235 140733553411360 18446744073709551615 4257111 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6272/statm: 57476 47785 239 24 0 54110 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 229904

Child status: 20
Real time (s): 2.92081
CPU time (s): 2.92055
CPU user time (s): 2.82457
CPU system time (s): 0.095985
CPU usage (%): 99.9911
Max. virtual memory (cumulated for all children) (KiB): 282328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.82457
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 72525
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= 4
involuntary context switches= 2

runsolver used 0.008998 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node140 at 2011-05-31 16:06:39
IDJOB=3434149
IDBENCH=88185
IDSOLVER=1930
FILE ID=node140/3434149-1306850798
RUNJOBID= node140-1306842918-5736
PBS_JOBID= 13482012
Free space on /tmp= 57508 MiB

SOLVER NAME= minisat hack: MiniSAT 2.2.0-agile-26
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3434149-1306850798/watcher-3434149-1306850798 -o /tmp/evaluation-result-3434149-1306850798/solver-3434149-1306850798 -C 5000 -W 5100 -M 15500  minisat HOME/instance-3434149-1306850798.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=169417706

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.77
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		: 2666.833
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		: 2666.833
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		: 2666.833
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		: 2666.833
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:       7140384 kB
Buffers:        221704 kB
Cached:       17778804 kB
SwapCached:       6932 kB
Active:       13575368 kB
Inactive:     11558224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7140384 kB
SwapTotal:    67111528 kB
SwapFree:     67057928 kB
Dirty:           31472 kB
Writeback:           0 kB
AnonPages:     7131156 kB
Mapped:          38164 kB
Slab:           557288 kB
PageTables:      52780 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 141624884 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= 57508 MiB
End job on node140 at 2011-05-31 16:06:42