Trace number 3422650

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: contrasat 2011-03-02? (exit code) 3.00354 3.0026

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 

2.89/2.99	c WARNING: for repeatability, setting FPU to use double precision
2.89/2.99	UNSATISFIABLE

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

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-3422650-1306690215/watcher-3422650-1306690215 -o /tmp/evaluation-result-3422650-1306690215/solver-3422650-1306690215 -C 5000 -W 5100 -M 15500 contrasat_release HOME/instance-3422650-1306690215.cnf 

running on 4 cores: 1,3,5,7

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: 3.11 2.35 2.11 2/498 18403
/proc/meminfo: memFree=28267024/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=31344 CPUtime=0 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 3005 0 0 0 0 0 0 0 23 0 1 0 780621284 32096256 2923 33554432000 4194304 4298156 140735625695312 18446744073709551615 4241867 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 7836 2927 216 26 0 4468 0

[startup+0.0600859 s]
/proc/loadavg: 3.11 2.35 2.11 2/498 18403
/proc/meminfo: memFree=28267024/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=66256 CPUtime=0.05 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 10075 0 0 0 4 1 0 0 23 0 1 0 780621284 67846144 9859 33554432000 4194304 4298156 140735625695312 18446744073709551615 4284417 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 16564 9862 216 26 0 13196 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 66256

[startup+0.101081 s]
/proc/loadavg: 3.11 2.35 2.11 2/498 18403
/proc/meminfo: memFree=28267024/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=89768 CPUtime=0.09 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 14814 0 0 0 8 1 0 0 23 0 1 0 780621284 91922432 14555 33554432000 4194304 4298156 140735625695312 18446744073709551615 4284889 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 22442 14556 216 26 0 19074 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 89768

[startup+0.301048 s]
/proc/loadavg: 3.11 2.35 2.11 2/498 18403
/proc/meminfo: memFree=28267024/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=130244 CPUtime=0.29 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 26507 0 0 0 26 3 0 0 25 0 1 0 780621284 133369856 24122 33554432000 4194304 4298156 140735625695312 18446744073709551615 210646807237 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 32561 24124 216 26 0 29193 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 130244

[startup+0.700978 s]
/proc/loadavg: 3.11 2.35 2.11 2/498 18403
/proc/meminfo: memFree=28267024/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=217864 CPUtime=0.69 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 51023 0 0 0 62 7 0 0 25 0 1 0 780621284 223092736 43682 33554432000 4194304 4298156 140735625695312 18446744073709551615 210646807237 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 54466 43684 216 26 0 51098 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217864

[startup+1.50085 s]
/proc/loadavg: 3.02 2.34 2.11 3/499 18404
/proc/meminfo: memFree=28073336/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=232928 CPUtime=1.49 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 57963 0 0 0 142 7 0 0 25 0 1 0 780621284 238518272 48587 33554432000 4194304 4298156 140735625695312 18446744073709551615 4229289 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 58232 48588 222 26 0 54864 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 232928

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

[startup+2.30071 s]
/proc/loadavg: 3.02 2.34 2.11 3/499 18404
/proc/meminfo: memFree=28036984/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=316792 CPUtime=2.29 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 69157 0 0 0 220 9 0 0 25 0 1 0 780621284 324395008 58296 33554432000 4194304 4298156 140735625695312 18446744073709551615 4210610 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 79198 58296 223 26 0 75830 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 316792

[startup+2.70065 s]
/proc/loadavg: 3.02 2.34 2.11 3/499 18404
/proc/meminfo: memFree=28036984/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=260116 CPUtime=2.69 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 81021 0 0 0 259 10 0 0 25 0 1 0 780621284 266358784 53117 33554432000 4194304 4298156 140735625695312 18446744073709551615 4284889 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 65029 53117 223 26 0 61661 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 260116

[startup+2.90061 s]
/proc/loadavg: 3.02 2.34 2.11 3/499 18404
/proc/meminfo: memFree=28036984/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=264204 CPUtime=2.89 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202496 82278 0 0 0 279 10 0 0 25 0 1 0 780621284 270544896 47882 33554432000 4194304 4298156 140735625695312 18446744073709551615 4210839 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/18403/statm: 66051 47882 223 26 0 62683 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 264204

[startup+3.00059 s]
/proc/loadavg: 3.02 2.34 2.11 3/499 18404
/proc/meminfo: memFree=28036984/32951132 swapFree=59085548/67111528
[pid=18403] ppid=18401 vsize=0 CPUtime=2.99 cores=1,3,5,7
/proc/18403/stat : 18403 (contrasat_relea) R 18401 18403 18210 0 -1 4202500 89960 0 0 0 287 12 0 0 25 0 1 0 780621284 0 0 33554432000 0 0 0 0 0 0 0 4096 8388610 18446744073709551615 0 0 17 3 0 0 0
/proc/18403/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.99
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 3.0026
CPU time (s): 3.00354
CPU user time (s): 2.87556
CPU system time (s): 0.12798
CPU usage (%): 100.031
Max. virtual memory (cumulated for all children) (KiB): 316792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.87556
system time used= 0.12798
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 89960
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= 7

runsolver used 0.008998 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node129 at 2011-05-29 19:30:17
IDJOB=3422650
IDBENCH=88185
IDSOLVER=1915
FILE ID=node129/3422650-1306690215
RUNJOBID= node129-1306689476-18229
PBS_JOBID= 13471844
Free space on /tmp= 73116 MiB

SOLVER NAME= minisat hack: contrasat 2011-03-02
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= contrasat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3422650-1306690215/watcher-3422650-1306690215 -o /tmp/evaluation-result-3422650-1306690215/solver-3422650-1306690215 -C 5000 -W 5100 -M 15500  contrasat_release HOME/instance-3422650-1306690215.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=181686089

node129.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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.74
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      28267320 kB
Buffers:        219160 kB
Cached:        1770384 kB
SwapCached:      74212 kB
Active:         671360 kB
Inactive:      3783424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      28267320 kB
SwapTotal:    67111528 kB
SwapFree:     59085548 kB
Dirty:           32288 kB
Writeback:           0 kB
AnonPages:     2402184 kB
Mapped:          18284 kB
Slab:           101340 kB
PageTables:      59448 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 147457616 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73116 MiB
End job on node129 at 2011-05-29 19:30:20