Trace number 3483773

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
PicoMUS 941UNSAT 0.97885 0.979989

General information on the benchmark

Namemus/marques-silva/hardware-verification/
elf.rf7.ucl.sat.chaff.4.1.bryant.cnf
MD5SUM0e2fade3dda91a2b9f43c7e6f8247ddb
Bench CategoryMUS (MUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.068989
Satisfiable
(Un)Satisfiability was proved
Number of variables1752
Number of clauses4772
Sum of the clauses size10990
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 23324
Number of clauses of size 31447
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c [picomus] WARNING: no output file given
0.00/0.02	c [picomus] p cnf 1752 4772
0.00/0.02	s UNSATISFIABLE
0.00/0.02	c [picomus] extracted core 1 of size 651 out of 4772 (14%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 2 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 3 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 4 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 5 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 6 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 7 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 8 of size 625 out of 4772 (13%) after 0.0 sec
0.00/0.04	c [picomus] reduction 1 to 551 out of 4772 (12%) after 0.0 sec
0.00/0.06	c [picomus] reduction 2 to 534 out of 4772 (11%) after 0.1 sec
0.00/0.07	c [picomus] reduction 3 to 533 out of 4772 (11%) after 0.1 sec
0.00/0.07	c [picomus] reduction 4 to 513 out of 4772 (11%) after 0.1 sec
0.09/0.19	c [picomus] reduction 5 to 511 out of 4772 (11%) after 0.2 sec
0.29/0.30	c [picomus] reduction 6 to 510 out of 4772 (11%) after 0.3 sec
0.29/0.31	c [picomus] reduction 7 to 509 out of 4772 (11%) after 0.3 sec
0.29/0.32	c [picomus] reduction 8 to 508 out of 4772 (11%) after 0.3 sec
0.29/0.33	c [picomus] reduction 9 to 507 out of 4772 (11%) after 0.3 sec
0.79/0.82	c [picomus] reduction 10 to 506 out of 4772 (11%) after 0.8 sec
0.79/0.89	c [picomus] reduction 11 to 505 out of 4772 (11%) after 0.9 sec
0.89/0.94	c [picomus] reduction 12 to 503 out of 4772 (11%) after 0.9 sec
0.89/0.97	c [picosat] 516 calls
0.89/0.97	c [picosat] 0 iterations
0.89/0.97	c [picosat] 0 restarts
0.89/0.97	c [picosat] 0 failed literals
0.89/0.97	c [picosat] 129 conflicts
0.89/0.97	c [picosat] 3002221 decisions
0.89/0.97	c [picosat] 554 fixed variables
0.89/0.97	c [picosat] 23945 learned literals
0.89/0.97	c [picosat] 1.2% deleted literals
0.89/0.97	c [picosat] 3218648 propagations
0.89/0.97	c [picosat] 15.0% variables used
0.89/0.97	c [picosat] 0.7 seconds in library
0.89/0.97	c [picosat] 4.4 megaprops/second
0.89/0.97	c [picosat] probing 0.0 seconds 3%
0.89/0.97	c [picosat] 21 simplifications
0.89/0.97	c [picosat] 0 reductions
0.89/0.97	c [picosat] 0.1 MB recycled
0.89/0.97	c [picosat] 0.5 MB maximally allocated
0.89/0.97	c [picomus] found 4269 redundant clauses 89%
0.89/0.97	c [picomus] computed MUS of size 503 out of 4772 (11%)
0.89/0.97	v 421
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0.89/0.97	v 4676
0.89/0.97	v 4680
0.89/0.97	v 4681
0.89/0.97	v 4682
0.89/0.97	v 4686
0.89/0.97	v 4689
0.89/0.97	v 4701
0.89/0.97	v 4704
0.89/0.97	v 4705
0.89/0.97	v 4706
0.89/0.97	v 4710
0.89/0.97	v 4712
0.89/0.97	v 4727
0.89/0.97	v 4731
0.89/0.97	v 4736
0.89/0.97	v 4738
0.89/0.97	v 4742
0.89/0.97	v 4744
0.89/0.97	v 4748
0.89/0.97	v 4750
0.89/0.97	v 4753
0.89/0.97	v 4755
0.89/0.97	v 4756
0.89/0.97	v 4759
0.89/0.97	v 4761
0.89/0.97	v 4762
0.89/0.97	v 4764
0.89/0.97	v 4765
0.89/0.97	v 4768
0.89/0.97	v 4771
0.89/0.97	v 4772
0.89/0.97	v 0
0.89/0.97	c [picomus] computed 503 irredundant clauses 11%
0.89/0.97	c [picomus] 12 reductions in 1.0 seconds

Verifier Data 

OK	503

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-3483773-1307605137/watcher-3483773-1307605137 -o /tmp/evaluation-result-3483773-1307605137/solver-3483773-1307605137 -C 1800 -W 1850 -M 7680 picomus HOME/instance-3483773-1307605137.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1192 CPUtime=0.01 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 240 0 0 0 1 0 0 0 25 0 1 0 852929037 1220608 195 33554432000 134512640 135072097 4287514384 18446744073709551615 134543726 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 298 195 67 137 0 159 0

[startup+0.0932621 s]
/proc/loadavg: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1472 CPUtime=0.09 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 386 0 0 0 9 0 0 0 25 0 1 0 852929037 1507328 270 33554432000 134512640 135072097 4287514384 18446744073709551615 134584030 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 368 270 77 137 0 229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1472

[startup+0.100247 s]
/proc/loadavg: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1472 CPUtime=0.09 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 386 0 0 0 9 0 0 0 25 0 1 0 852929037 1507328 270 33554432000 134512640 135072097 4287514384 18446744073709551615 134518196 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 368 270 77 137 0 229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1472

[startup+0.300213 s]
/proc/loadavg: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1472 CPUtime=0.29 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 386 0 0 0 29 0 0 0 25 0 1 0 852929037 1507328 270 33554432000 134512640 135072097 4287514384 18446744073709551615 134543359 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 368 270 77 137 0 229 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1472

[startup+0.701142 s]
/proc/loadavg: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1472 CPUtime=0.69 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 386 0 0 0 69 0 0 0 25 0 1 0 852929037 1507328 270 33554432000 134512640 135072097 4287514384 18446744073709551615 134548773 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 368 270 77 137 0 229 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1472

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

[startup+0.901108 s]
/proc/loadavg: 2.56 0.70 0.24 4/704 7399
/proc/meminfo: memFree=4762200/32951124 swapFree=67057920/67111528
[pid=7399] ppid=7397 vsize=1472 CPUtime=0.89 cores=1,3
/proc/7399/stat : 7399 (picomus) R 7397 7399 6737 0 -1 4202496 386 0 0 0 89 0 0 0 25 0 1 0 852929037 1507328 270 33554432000 134512640 135072097 4287514384 18446744073709551615 134585038 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7399/statm: 368 270 77 137 0 229 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 1472

Child status: 20
Real time (s): 0.979989
CPU time (s): 0.97885
CPU user time (s): 0.976851
CPU system time (s): 0.001999
CPU usage (%): 99.8838
Max. virtual memory (cumulated for all children) (KiB): 1472

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.976851
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= 387
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= 3
involuntary context switches= 0

runsolver used 0.012998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node140 at 2011-06-09 09:38:57
IDJOB=3483773
IDBENCH=89502
IDSOLVER=1974
FILE ID=node140/3483773-1307605137
RUNJOBID= node140-1307605082-7304
PBS_JOBID= 13547749
Free space on /tmp= 73296 MiB

SOLVER NAME= PicoMUS 941
BENCH NAME= SAT11/mus/marques-silva/hardware-verification/elf.rf7.ucl.sat.chaff.4.1.bryant.cnf
COMMAND LINE= picomus BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3483773-1307605137/watcher-3483773-1307605137 -o /tmp/evaluation-result-3483773-1307605137/solver-3483773-1307605137 -C 1800 -W 1850 -M 7680  picomus HOME/instance-3483773-1307605137.cnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 0e2fade3dda91a2b9f43c7e6f8247ddb
RANDOM SEED=1234468618

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:       4762480 kB
Buffers:        200108 kB
Cached:         765964 kB
SwapCached:       7060 kB
Active:       27678528 kB
Inactive:       202004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4762480 kB
SwapTotal:    67111528 kB
SwapFree:     67057920 kB
Dirty:           35816 kB
Writeback:           0 kB
AnonPages:    26912416 kB
Mapped:         103556 kB
Slab:           143340 kB
PageTables:      95232 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 166159104 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= 73296 MiB
End job on node140 at 2011-06-09 09:38:58