Trace number 1728235

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
hybridGM7 7Signal 0.160975 0.161481

General information on the benchmark

Namecrafted/Hard/contest05/others/
eulcbip-8-UNSAT.sat05-3937.reshuffled-07.cnf
MD5SUMcc16a72221b8e1efdfd6127b2f238bcd
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables161
Number of clauses802
Sum of the clauses size3204
Maximum clause length4
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 30
Number of clauses of size 4800
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c Heuristic : G2WSAT
0.00/0.03	c Hybrid barrier : 1 
0.00/0.03	c Problem instance: numAtoms = 161, numClauses = 802, numLiterals = 3204
0.00/0.03	c General parameters: seed=1007614067, cutoff=1000000000, targetCost = 0, print solution: yes
0.00/0.03	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 100
0.00/0.03	c tries = 1
0.00/0.03	c

Verifier Data 

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

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1728235-1240734337/watcher-1728235-1240734337 -o /tmp/evaluation-result-1728235-1240734337/solver-1728235-1240734337 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM7 HOME/instance-1728235-1240734337.cnf 1007614067 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21849
/proc/meminfo: memFree=1121800/2055920 swapFree=4148400/4192956
[pid=21849] ppid=21847 vsize=260600 CPUtime=0
/proc/21849/stat : 21849 (hybridGM7) R 21847 21849 21562 0 -1 4194304 889 0 0 0 0 0 0 0 18 0 1 0 101467210 266854400 873 1992294400 134512640 135204385 4294956224 18446744073709551615 134542712 0 0 4096 0 0 0 0 17 1 0 0
/proc/21849/statm: 65150 879 55 168 0 64980 0

[startup+0.103737 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21849
/proc/meminfo: memFree=1121800/2055920 swapFree=4148400/4192956
[pid=21849] ppid=21847 vsize=268548 CPUtime=0.09
/proc/21849/stat : 21849 (hybridGM7) R 21847 21849 21562 0 -1 4195840 7107 0 0 0 4 5 0 0 18 0 1 0 101467210 274993152 4595 1992294400 134512640 135204385 4294956224 18446744073709551615 134532951 0 0 4096 0 0 0 0 17 1 0 0
/proc/21849/statm: 67137 4595 85 168 0 66967 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 268548

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

[startup+0.103737 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21849
/proc/meminfo: memFree=1121800/2055920 swapFree=4148400/4192956
[pid=21849] ppid=21847 vsize=268548 CPUtime=0.09
/proc/21849/stat : 21849 (hybridGM7) R 21847 21849 21562 0 -1 4195840 7107 0 0 0 4 5 0 0 18 0 1 0 101467210 274993152 4595 1992294400 134512640 135204385 4294956224 18446744073709551615 134532951 0 0 4096 0 0 0 0 17 1 0 0
/proc/21849/statm: 67137 4595 85 168 0 66967 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 268548

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 0.161481
CPU time (s): 0.160975
CPU user time (s): 0.044993
CPU system time (s): 0.115982
CPU usage (%): 99.6867
Max. virtual memory (cumulated for all children) (KiB): 268548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.044993
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16894
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= 8

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node14 at 2009-04-26 10:25:37
IDJOB=1728235
IDBENCH=24666
IDSOLVER=535
FILE ID=node14/1728235-1240734337
PBS_JOBID= 9186952
Free space on /tmp= 66436 MiB

SOLVER NAME= hybridGM7 7
BENCH NAME= SAT07/crafted/Hard/contest05/others/eulcbip-8-UNSAT.sat05-3937.reshuffled-07.cnf
COMMAND LINE= HOME/hybridGM7 BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1728235-1240734337/watcher-1728235-1240734337 -o /tmp/evaluation-result-1728235-1240734337/solver-1728235-1240734337 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM7 HOME/instance-1728235-1240734337.cnf 1007614067 

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= cc16a72221b8e1efdfd6127b2f238bcd
RANDOM SEED=1007614067

node14.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.256
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.256
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1122216 kB
Buffers:         76048 kB
Cached:         742316 kB
SwapCached:      38368 kB
Active:         196628 kB
Inactive:       662368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1122216 kB
SwapTotal:     4192956 kB
SwapFree:      4148400 kB
Dirty:            1052 kB
Writeback:           0 kB
Mapped:          13492 kB
Slab:            60644 kB
Committed_AS:   346732 kB
PageTables:       1448 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66420 MiB
End job on node14 at 2009-04-26 10:25:37