Trace number 3350278

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) 3.37349 3.37437

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 benchmark0.571912
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 

3.30/3.36	c WARNING: for repeatability, setting FPU to use double precision
3.30/3.36	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-3350278-1304974627/watcher-3350278-1304974627 -o /tmp/evaluation-result-3350278-1304974627/solver-3350278-1304974627 -C 2400 -W 1300 -M 7680 contrasat_release HOME/instance-3350278-1304974627.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: 3.94 3.73 3.54 4/307 23564
/proc/meminfo: memFree=4422488/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=27248 CPUtime=0 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 2276 0 0 0 0 0 0 0 25 0 1 0 609062395 27901952 2195 33554432000 4194304 4298156 140735945464320 18446744073709551615 4244369 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 6812 2196 216 26 0 3444 0

[startup+0.024717 s]
/proc/loadavg: 3.94 3.73 3.54 4/307 23564
/proc/meminfo: memFree=4422488/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=40356 CPUtime=0.01 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 4646 0 0 0 1 0 0 0 25 0 1 0 609062395 41324544 4561 33554432000 4194304 4298156 140735945464320 18446744073709551615 4284889 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 10089 4561 216 26 0 6721 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 40356

[startup+0.100752 s]
/proc/loadavg: 3.94 3.73 3.54 4/307 23564
/proc/meminfo: memFree=4422488/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=89500 CPUtime=0.09 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 13878 0 0 0 8 1 0 0 25 0 1 0 609062395 91648000 13630 33554432000 4194304 4298156 140735945464320 18446744073709551615 4284417 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 22375 13635 216 26 0 19007 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 89500

[startup+0.300711 s]
/proc/loadavg: 3.94 3.73 3.54 4/307 23564
/proc/meminfo: memFree=4422488/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=118964 CPUtime=0.29 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 24997 0 0 0 26 3 0 0 25 0 1 0 609062395 121819136 22803 33554432000 4194304 4298156 140735945464320 18446744073709551615 4284838 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 29741 22804 216 26 0 26373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 118964

[startup+0.700648 s]
/proc/loadavg: 3.94 3.73 3.54 4/307 23564
/proc/meminfo: memFree=4422488/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=207084 CPUtime=0.69 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 47365 0 0 0 63 6 0 0 25 0 1 0 609062395 212054016 40500 33554432000 4194304 4298156 140735945464320 18446744073709551615 208079893189 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 51771 40502 216 26 0 48403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 207084

[startup+1.5005 s]
/proc/loadavg: 3.94 3.73 3.54 5/308 23565
/proc/meminfo: memFree=4225204/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=232308 CPUtime=1.48 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 57687 0 0 0 141 7 0 0 25 0 1 0 609062395 237883392 48319 33554432000 4194304 4298156 140735945464320 18446744073709551615 4227683 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 58077 48319 222 26 0 54709 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 232308

[startup+3.10019 s]
/proc/loadavg: 3.94 3.73 3.54 5/308 23565
/proc/meminfo: memFree=4197940/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=260524 CPUtime=3.09 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 81603 0 0 0 298 11 0 0 25 0 1 0 609062395 266776576 53578 33554432000 4194304 4298156 140735945464320 18446744073709551615 4222664 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 65131 53578 223 26 0 61763 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 260524

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

[startup+3.31115 s]
/proc/loadavg: 3.94 3.73 3.54 5/308 23565
/proc/meminfo: memFree=4192240/32950928 swapFree=67083212/67111528
[pid=23564] ppid=23562 vsize=264212 CPUtime=3.3 cores=0,2
/proc/23564/stat : 23564 (contrasat_relea) R 23562 23564 22349 0 -1 4202496 86419 0 0 0 318 12 0 0 25 0 1 0 609062395 270553088 50581 33554432000 4194304 4298156 140735945464320 18446744073709551615 4264242 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23564/statm: 66053 50583 223 26 0 62685 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 264212

Child status: 20
Real time (s): 3.37437
CPU time (s): 3.37349
CPU user time (s): 3.23251
CPU system time (s): 0.140978
CPU usage (%): 99.9738
Max. virtual memory (cumulated for all children) (KiB): 316800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.23251
system time used= 0.140978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 89961
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= 9

runsolver used 0.013997 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node127 at 2011-05-09 22:57:07
IDJOB=3350278
IDBENCH=88185
IDSOLVER=1816
FILE ID=node127/3350278-1304974627
RUNJOBID= node127-1304974556-23446
PBS_JOBID= 13285623
Free space on /tmp= 41724 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-3350278-1304974627/watcher-3350278-1304974627 -o /tmp/evaluation-result-3350278-1304974627/solver-3350278-1304974627 -C 2400 -W 1300 -M 7680  contrasat_release HOME/instance-3350278-1304974627.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=497820728

node127.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		: 2666.823
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	: 5333.64
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		: 2666.823
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		: 2666.823
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	: 5332.74
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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	: 5332.75
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:       4422644 kB
Buffers:        220844 kB
Cached:       10237152 kB
SwapCached:       1588 kB
Active:       20619636 kB
Inactive:      7409940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4422644 kB
SwapTotal:    67111528 kB
SwapFree:     67083212 kB
Dirty:          494804 kB
Writeback:           0 kB
AnonPages:    17570272 kB
Mapped:          26732 kB
Slab:           384144 kB
PageTables:      50728 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 46432988 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= 41724 MiB
End job on node127 at 2011-05-09 22:57:11